Cita APA (7a ed.)

Poon, M., & Poon, M. N. (1984). The counsel against despair.

Cita Chicago Style (17a ed.)

Poon, M., y M. N.-C Poon. The Counsel Against Despair. 1984.

Cita MLA (9a ed.)

Poon, M., y M. N.-C Poon. The Counsel Against Despair. 1984.