Cita APA

Gondin, W. R., & Mammen, E. W. (1967). The art of speaking: Made simple. W H Allen.

Chicago Edition Citation

Gondin, William R., i Edward W. Mammen. The Art of Speaking: Made Simple. London: W H Allen, 1967.

Cita MLA

Gondin, William R., i Edward W. Mammen. The Art of Speaking: Made Simple. W H Allen, 1967.