Krussman, G., & Warda, H. (1985). Manual of cultivated conifers (2nd rev. ed.). Timber Press.
Chicago Style (17th ed.) CitationKrussman, Gerd, and Hans-Dieter Warda. Manual of Cultivated Conifers. 2nd rev. ed. Portland, Or.: Timber Press, 1985.
MLA (9th ed.) CitationKrussman, Gerd, and Hans-Dieter Warda. Manual of Cultivated Conifers. 2nd rev. ed. Timber Press, 1985.
Warning: These citations may not always be 100% accurate.