You can access or purchase the 9th edition legally through these channels:

Perry's Chemical Engineers' Handbook | McGraw-Hill Education

Expanded coverage of bioreactions and bioprocessing , plus updated chemical property data.

Features more than 700 illustrations and data associating theory to real-world application .

Digital copies are available for purchase on platforms like Amazon Kindle , Google Play Books , and eBooks.com . Key Features of the 9th Edition

Includes 25 extensively revised sections covering latest technological advances.