Cita APA (7th ed.)

Trager, G. L. (1972). Language and languages. Chandler Pub. Co.

Cita Chicago (17th ed.)

Trager, George L. Language and Languages. San Francisco: Chandler Pub. Co, 1972.

Cita MLA (8th ed.)

Trager, George L. Language and Languages. Chandler Pub. Co, 1972.