APA (7th ed.) Citation

Pujiula, J. (1941). Problemas biológicos. [s.n.].

Chicago Style (17th ed.) Citation

Pujiula, Jaime. Problemas Biológicos. Barcelona: [s.n.], 1941.

MLA (9th ed.) Citation

Pujiula, Jaime. Problemas Biológicos. [s.n.], 1941.

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