Citazione Stile APA (7a Edizione)

Thatcher, D. A. (1973). Teaching, loving, and self-directed learning. Goodyear Pub. Co.

Citazione stile Chigago Style (17a edizione)

Thatcher, David A. Teaching, Loving, and Self-directed Learning. Pacific Palisades, Calif.: Goodyear Pub. Co, 1973.

Citatione MLA (8a ed.)

Thatcher, David A. Teaching, Loving, and Self-directed Learning. Goodyear Pub. Co, 1973.