Dirr, M. (1978). Photographic manual of woody landscape plants: Form and function in the landscape. Stipes Pub. Co..
Chicago Style (17th ed.) CitationDirr, Michael. Photographic Manual of Woody Landscape Plants: Form and Function in the Landscape. Champaign, Ill.: Stipes Pub. Co., 1978.
MLA (9th ed.) CitationDirr, Michael. Photographic Manual of Woody Landscape Plants: Form and Function in the Landscape. Stipes Pub. Co., 1978.
Warning: These citations may not always be 100% accurate.