Cita APA (7a ed.)

Hawkins, J., Hughes, C., & Scotland, R. (1997). Primary homology assessment, characters and character states.

Cita Chicago Style (17a ed.)

Hawkins, J., C. Hughes, y R. Scotland. Primary Homology Assessment, Characters and Character States. 1997.

Cita MLA (9a ed.)

Hawkins, J., et al. Primary Homology Assessment, Characters and Character States. 1997.