Cita APA (7th ed.)

Willard, H. S., & Spackman, C. S. (1963). Occupational therapy. Lippincott.

Cita Chicago (17th ed.)

Willard, Helen S., i Clare S. Spackman. Occupational Therapy. Philadelphia: Lippincott, 1963.

Cita MLA (9th ed.)

Willard, Helen S., i Clare S. Spackman. Occupational Therapy. Lippincott, 1963.