Cita APA (7th ed.)

Travers, R. M. (1967). Essentials of learning: An overview for students of education. Macmillan.

Cita Chicago (17th ed.)

Travers, Robert M.W. Essentials of Learning: An Overview for Students of Education. New York: Macmillan, 1967.

Cita MLA (9th ed.)

Travers, Robert M.W. Essentials of Learning: An Overview for Students of Education. Macmillan, 1967.