APA (7th ed.) Citation

Pizarro, E., & Suárez y Gamboa. (1971). Los virus. s.n.

Chicago Style (17th ed.) Citation

Pizarro, Enrique, and Suárez y Gamboa. Los Virus. Washington, D.C: s.n, 1971.

MLA (9th ed.) Citation

Pizarro, Enrique, and Suárez y Gamboa. Los Virus. s.n, 1971.

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