Tohutoro APA (7th ed.)

Lado, R. (1964). Language teaching: A scientific approach (1a. ed.). McGraw-Hill.

Tohutoru Kātū Chicago (17th ed.)

Lado, Robert. Language Teaching: A Scientific Approach. 1a. ed. Nueva York: McGraw-Hill, 1964.

Tohutoro MLA (9th ed.)

Lado, Robert. Language Teaching: A Scientific Approach. 1a. ed. McGraw-Hill, 1964.