Παραπομπή σε μορφή APA (7η εκδ.)

Sweet, T. (2002). American georgics: Economy and environment in early American literature. University of Pennsylvania Press.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Sweet, Timothy. American Georgics: Economy and Environment in Early American Literature. Philadelphia: University of Pennsylvania Press, 2002.

Παραπομπή σε μορφή MLA (9th εκδ.)

Sweet, Timothy. American Georgics: Economy and Environment in Early American Literature. University of Pennsylvania Press, 2002.