The text you are looking for likely refers to the book by Jorge L. Tamayo

Institutional libraries like those at UNAM's Institute of Geography often carry physical or digital copies for student use.

: You can find detailed information and purchase options directly from Editorial Trillas .

The study of Mexican geography remains incomplete without referencing the monumental work of Jorge L. Tamayo

Title: Economía — 15ª Edición (2021) Author: Jorge L. Tamayo Publisher: Editorial Trillas