Beautiful barrier-free; a visual guide to accessibility.

MLA

Leibrock, C, and S Behar. Beautiful Barrier-free; a Visual Guide to Accessibility. New York: Van Nostrand Reinhold, 1993.

APA

Leibrock, C., & Behar, S. (1993). Beautiful barrier-free; a visual guide to accessibility. New York: Van Nostrand Reinhold.

Chicago

Leibrock, C., and S Behar. Beautiful Barrier-Free; a Visual Guide to Accessibility. New York: Van Nostrand Reinhold, 1993.