Παραπομπή APA

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

Παραπομπή Chicago Style

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

Παραπομπή MLA

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

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