It seems you’re looking for a reference to the book “Física General” by Héctor Pérez Montiel, published by Editorial Patria, 6th edition (2018), and you mentioned “extra quality” — likely meaning you want a high-quality version (e.g., clear scans, searchable PDF, or original print quality).
The book is organized into 17 units covering classical and modern physics: Foundations & Tools It seems you’re looking for a reference to
A lower-quality counterfeit will have blurry, un-scannable QR codes. Therefore, "extra quality" implies a pristine, scannable code section. published by Editorial Patria
Edición 2018: Calidad Extra
Abstract