Powell, D. (1985). Presentation techniques: A guide to drawing and presenting design ideas. Orbis.
Chicago Style (17th ed.) CitationPowell, Dick. Presentation Techniques: A Guide to Drawing and Presenting Design Ideas. London: Orbis, 1985.
MLA (9th ed.) CitationPowell, Dick. Presentation Techniques: A Guide to Drawing and Presenting Design Ideas. Orbis, 1985.
Warning: These citations may not always be 100% accurate.