Hill, E., & Ponder, P. (1976). Orientation and mobility techniques: A guide for the practitioner. American Foundation for the Blind.
Chicago Style (17th ed.) CitationHill, Everett, and Purvis Ponder. Orientation and Mobility Techniques: A Guide for the Practitioner. New York: American Foundation for the Blind, 1976.
MLA (9th ed.) CitationHill, Everett, and Purvis Ponder. Orientation and Mobility Techniques: A Guide for the Practitioner. American Foundation for the Blind, 1976.
Warning: These citations may not always be 100% accurate.