Dubery, . F., & Willats, J. (1972). Drawing systems. Studio Vista.
Chicago Style (17th ed.) CitationDubery, Fred, and John Willats. Drawing Systems. London: Studio Vista, 1972.
MLA (9th ed.) CitationDubery, Fred, and John Willats. Drawing Systems. Studio Vista, 1972.
Warning: These citations may not always be 100% accurate.