Cita APA (7a ed.)

Gaeng, P. A. (1971). Introduction to the principles of language. Harper & Row.

Cita Chicago Style (17a ed.)

Gaeng, Paul A. Introduction to the Principles of Language. New York: Harper & Row, 1971.

Cita MLA (9a ed.)

Gaeng, Paul A. Introduction to the Principles of Language. Harper & Row, 1971.