Cita APA (7a ed.)

Lepera, R., Lyford-Pike, P., Salom, A., Andreoli, G., & Veirano, G. (2005). Giant sacral chordoma. Diagnosis and treatment.

Cita Chicago Style (17a ed.)

Lepera, Roberto, Patrick Lyford-Pike, Andrés Salom, Gustavo Andreoli, y Gustavo Veirano. Giant Sacral Chordoma. Diagnosis and Treatment. 2005.

Cita MLA (9a ed.)

Lepera, Roberto, et al. Giant Sacral Chordoma. Diagnosis and Treatment. 2005.