Cita APA (7th ed.)

Dwyer, F. M. (1972). A guide for improving visualized instruction. Learning Services.

Cita Chicago (17th ed.)

Dwyer, Francis M. A Guide for Improving Visualized Instruction. State College, Pa: Learning Services, 1972.

Cita MLA (9th ed.)

Dwyer, Francis M. A Guide for Improving Visualized Instruction. Learning Services, 1972.