APA (7th ed.) Citation

Rand, A., Peikoff, L., Alberro, H., Kofman, L., & Kofman, F. (2007). El manantial (4a ed.). Grito sagrado.

Chicago Style (17th ed.) Citation

Rand, Ayn, Leonard Peikoff, Hernán Alberro, Luis Kofman, and Fredy Kofman. El Manantial. 4a ed. Buenos Aires: Grito sagrado, 2007.

MLA (9th ed.) Citation

Rand, Ayn, et al. El Manantial. 4a ed. Grito sagrado, 2007.