Cita APA (7th ed.)

HALL, E. J. (1972). Practical conversation in english: For beginning students. Regents.

Cita Chicago (17th ed.)

HALL, Eugene J. Practical Conversation in English: For Beginning Students. New York: Regents, 1972.

Cita MLA (9th ed.)

HALL, Eugene J. Practical Conversation in English: For Beginning Students. Regents, 1972.