Robertson, B. (1988). Learn to Draw Charts and Diagrams step-by-step. Macdonald Orbis.
Chicago Style (17th ed.) CitationRobertson, Bruce. Learn to Draw Charts and Diagrams Step-by-step. Macdonald Orbis, 1988.
MLA (8th ed.) CitationRobertson, Bruce. Learn to Draw Charts and Diagrams Step-by-step. Macdonald Orbis, 1988.
Warning: These citations may not always be 100% accurate.