Harrar, E. S., Hardin, J. W., White, F. M., & Harlow, W. M. (1991). Textbook of dendrology: Covering the important forest trees of the United States and Canada (Seventh edition.). McGraw-Hill, Inc.
Chicago-Zitierstil (17. Ausg.)Harrar, Ellwood S., James W. Hardin, Fred M. White, und William M. Harlow. Textbook of Dendrology: Covering the Important Forest Trees of the United States and Canada. Seventh edition. New York: McGraw-Hill, Inc, 1991.
MLA-Zitierstil (9. Ausg.)Harrar, Ellwood S., et al. Textbook of Dendrology: Covering the Important Forest Trees of the United States and Canada. Seventh edition. McGraw-Hill, Inc, 1991.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.