APA-referens (7:e uppl.)

Andreu, M. G., Givens, E. M., & Friedman, M. H. (2010). How to Identify a Tree. The University of Florida George A. Smathers Libraries.

Chicago-referens (17:e uppl.)

Andreu, Michael G., Erin M. Givens, och Melissa H. Friedman. How to Identify a Tree. The University of Florida George A. Smathers Libraries, 2010.

MLA-referens (9:e uppl.)

Andreu, Michael G., et al. How to Identify a Tree. The University of Florida George A. Smathers Libraries, 2010.