APA (7th ed.) Citation

Harkness, S. P., & Groom, J. N. (1976). Building without barriers for the disabled. Whitney Library of Design.

Chicago Style (17th ed.) Citation

Harkness, Sarah P., and James N. Groom. Building Without Barriers for the Disabled. New York: Whitney Library of Design, 1976.

MLA (8th ed.) Citation

Harkness, Sarah P., and James N. Groom. Building Without Barriers for the Disabled. Whitney Library of Design, 1976.