335835 Hartwigsen, G. L. (1980). Design concepts: A basic guidebook. Boston, Mass : Allyn & Bacon.
Chicago Style (17th ed.) Citation335835 Hartwigsen, Gail Lynn. Design Concepts: A Basic Guidebook. Boston, Mass : Allyn & Bacon, 1980.
MLA (9th ed.) Citation335835 Hartwigsen, Gail Lynn. Design Concepts: A Basic Guidebook. Boston, Mass : Allyn & Bacon, 1980.
Warning: These citations may not always be 100% accurate.