APA (7th ed.) Citation

Freericks, R., Mascaró, E., & Suarez, G. (1961). Enigmas de la vida animal. Daimon.

Chicago Style (17th ed.) Citation

Freericks, Rudolf‏, Ernesto Mascaró, and Gonzalo Suarez. Enigmas De La Vida Animal. Madrid: Daimon, 1961.

MLA (9th ed.) Citation

Freericks, Rudolf‏, et al. Enigmas De La Vida Animal. Daimon, 1961.

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