APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

Krebs Wilckens, Ricardo. Breve Historia Universal. Santiago: Universitaria, 1982.

MLA (9th ed.) Citation

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

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