Willard, Helen S., Principles of occupational therapy, ed. by Helen S. Willard and Clare S. Spackman. - Philadelphia, [etc.] Lippincott [1947] - xviii, 416 p. illus. 21 cm. Includes "References." LCCN: med48000281 Subjects--Topical Terms: Occupational therapy.Rehabilitation. LC Class. No.: RM735 / .W5 Dewey Class. No.: 615.851