Cita APA (7th ed.)

Hall, E. J. (1965). Practical conversation in english: For intermediate students (1a. ed.). Regents.

Cita Chicago (17th ed.)

Hall, Eugene J. Practical Conversation in English: For Intermediate Students. 1a. ed. Nueva York: Regents, 1965.

Cita MLA (9th ed.)

Hall, Eugene J. Practical Conversation in English: For Intermediate Students. 1a. ed. Regents, 1965.