That's a broad question ... What level are you pegging (e.g. undergraduate, Master's, Ph.D.?), and, if at post-graduate level, there are so very many areas of specialization, that the list of "top books" easily swells into the thousands of titles .....

Please do narrow down?

This is a good question with lots of possible answers.

Chemistry books: For books on analytic chemistry, see

https://www.researchgate.net/publication/11538436_The_most_cited_books_in_analytical_chemistry

Here is a list of chemistry books:

Basic Inorganic Chemistry, 3rd Edition (Hardcover)

by F. Albert Cotton (Author), Geoffrey Wilkinson (Author), Paul L. Gaus (Author)

Inorganic Chemistry: Principles of Structure and Reactivity (4th Edition) (Hardcover)

by James E. Huheey (Author), Ellen A. Keiter (Author), Richard L. Keiter (Author)

Inorganic Chemistry (Paperback)

by Gary L. Miessler (Author)

Inorganic Chemistry, Third Edition w/CD (Hardcover)

by Duward Shriver (Author), Peter Atkins (Author)

Inorganic Chemistry, Fourth Edition

by Peter Atkins (Author),, Tina Overton (Author), Jonathan Rourke (Author), , Mark Weller (Author), and Fraser Armstrong (Author)

Advanced Inorganic Chemistry, 6th Edition (Hardcover)

by F. Albert Cotton (Author), Geoffrey Wilkinson (Author), Carlos A. Murillo (Author), Manfred Bochmann (Author)

Chemical Bonding and Molecular Geometry

By Gillespie and Popelier

Molecular Symmetry and Group Theory

By Robert carter (Author)

Chemical Applications of Group Theory, 3rd Edition (Hardcover)

by F. Albert Cotton (Author)

For more about this, see

http://www.chemicalforums.com/index.php?topic=10936.0

Physics books: see

https://www.researchgate.net/publication/227159442_Successive_citation_of_600_physics_books

http://academic.bancey.com/course-of-theoretical-physics-available-online/

Mathematics books: see

http://www.freebookcentre.net/SpecialCat/Free-Mathematics-Books-Download.html

http://www2014.maths.cam.ac.uk/undergrad/admissions/readinglist.pdf

Article The most cited books in analytical chemistry

Article Successive citation of 600 physics books

thanks 

I need to know at undergraduate level and at postgraduate in polymers, recycling, thermodynamics, kinetics  and industrial chemistry

I appreciate that

It is not only the problem for what audience the book is written.  There are "big" books, like "Magnetism and Magnetic Materials" by J.M.D. Coey (more than 600 pages!), which will tell you "everything" about magnetic phenomena.  Yet, if you are interested in a specific "small" problem, you better switch to something less known but better concentrated on this very subject.