Cita APA (7a ed.)

Vergani, D., Stanganelli, Z., & Bilenca, D. Effects of El Niño and La Niña events on the sex ratio of southern elephant seals at King George Island.

Cita Chicago Style (17a ed.)

Vergani, D.F, Z.B Stanganelli, y D. Bilenca. Effects of El Niño and La Niña Events on the Sex Ratio of Southern Elephant Seals at King George Island.

Cita MLA (8a ed.)

Vergani, D.F, et al. Effects of El Niño and La Niña Events on the Sex Ratio of Southern Elephant Seals at King George Island.