Cita APA (7a ed.)

Vazquez-Levin, M., Goldberg, S., Friedmann, P., Des Jarlais, D., & Nagler, H. Papanicolaou and Kruger assessment of sperm morphology: Thresholds and agreement.

Cita Chicago Style (17a ed.)

Vazquez-Levin, M.H, S.I Goldberg, P. Friedmann, D.C Des Jarlais, y H.M Nagler. Papanicolaou and Kruger Assessment of Sperm Morphology: Thresholds and Agreement.

Cita MLA (8a ed.)

Vazquez-Levin, M.H, et al. Papanicolaou and Kruger Assessment of Sperm Morphology: Thresholds and Agreement.