Cita APA (7a ed.)

Ripman, C., & Ripman, W. (1938). Let's talk english. J.M.Dent and Sons.

Cita Chicago Style (17a ed.)

Ripman, Constance, y Walter Ripman. Let's Talk English. London: J.M.Dent and Sons, 1938.

Cita MLA (8a ed.)

Ripman, Constance, y Walter Ripman. Let's Talk English. J.M.Dent and Sons, 1938.