APA (7th ed.) Citation

Pierre, G. (1980). Geografía activa. Ariel.

Chicago Style (17th ed.) Citation

Pierre, George. Geografía Activa. Ariel, 1980.

MLA (9th ed.) Citation

Pierre, George. Geografía Activa. Ariel, 1980.

Warning: These citations may not always be 100% accurate.