Heller, K. W. (1996). Understanding physical, sensory, and health impairments: Characteristics and educational implications. Brooks/Cole Pub.
Chicago-viite (17. p.)Heller, Kathryn Wolff. Understanding Physical, Sensory, and Health Impairments: Characteristics and Educational Implications. Pacific Grove: Brooks/Cole Pub, 1996.
MLA-viite (9. p.)Heller, Kathryn Wolff. Understanding Physical, Sensory, and Health Impairments: Characteristics and Educational Implications. Brooks/Cole Pub, 1996.
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