International edition and US edition

International edition and US edition have exactly same content word by word, including page numbers. Usually, International edition is printed in USA same as US edition.

How about paper and printing quality?
This international edition has excellent paper and printing quality. Usually, it uses same paper and printing as the US edition. Sometimes, it might be different. However, it's almost same.

ISBN?
International edition and US edition have different ISBN. Usually, referencing ISBN inside the international edition is same as ISBN of US edition.

Note: This book is not international edition from India, which the paper and printing qualities are very poor.