Cita APA (7th ed.)

Filbeck, R. (1974). Systems in teaching and learning. Professional Educators Publications.

Cita Chicago (17th ed.)

Filbeck, Robert. Systems in Teaching and Learning. Lincoln, Neb.: Professional Educators Publications, 1974.

Cita MLA (8th ed.)

Filbeck, Robert. Systems in Teaching and Learning. Professional Educators Publications, 1974.