Παραπομπή σε μορφή APA (7η εκδ.)

Spira, T. P. (2011). Wildflowers and plant communities of the southern Appalachian Mountains and Piedmont: A naturalist's guide to the Carolinas, Virginia, Tennessee, and Georgia. University of North Carolina Press.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Spira, Timothy P. Wildflowers and Plant Communities of the Southern Appalachian Mountains and Piedmont: A Naturalist's Guide to the Carolinas, Virginia, Tennessee, and Georgia. Chapel Hill [N.C.]: University of North Carolina Press, 2011.

Παραπομπή σε μορφή MLA (9th εκδ.)

Spira, Timothy P. Wildflowers and Plant Communities of the Southern Appalachian Mountains and Piedmont: A Naturalist's Guide to the Carolinas, Virginia, Tennessee, and Georgia. University of North Carolina Press, 2011.