Cita APA (7a ed.)

Hopper, P. J., Fox, B., Kemmer, S., Thompson, S. A., Yang, L., Haspelmath, M., . . . Bakker, E. (1994). Voice: Form and function. John Benjamins.

Cita Chicago Style (17a ed.)

Hopper, Paul J., et al. Voice: Form and Function. Amsterdam: John Benjamins, 1994.

Cita MLA (9a ed.)

Hopper, Paul J., et al. Voice: Form and Function. John Benjamins, 1994.