Cita APA (7th ed.)

Carkhuff, R. R. (1976). The skills of teaching: Interpersonal skills. Human Resorces Development..

Cita Chicago (17th ed.)

Carkhuff, Robert R. The Skills of Teaching: Interpersonal Skills. Massachuusetts: Human Resorces Development., 1976.

Cita MLA (9th ed.)

Carkhuff, Robert R. The Skills of Teaching: Interpersonal Skills. Human Resorces Development., 1976.