Παραπομπή APA

Roy, C. (1979). Quality in urban planning and design(conference). Newnes-Butterworths.

Παραπομπή Chicago Style

Roy, Cresswell. Quality in Urban Planning and Design(conference). London: Newnes-Butterworths, 1979.

Παραπομπή MLA

Roy, Cresswell. Quality in Urban Planning and Design(conference). Newnes-Butterworths, 1979.