APA (7th ed.) Citation

Krebs, R. (1982). Breve historia universal. Universitaria.

Chicago Style (17th ed.) Citation

Krebs, Ricardo. Breve Historia Universal. Universitaria, 1982.

MLA (9th ed.) Citation

Krebs, Ricardo. Breve Historia Universal. Universitaria, 1982.

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