Hall, D. W., & Butler, J. F. (2004). Spicebush Swallowtail, Papilio troilus Linnaeus (Insecta: Lepidoptera: Papilionidae). The University of Florida George A. Smathers Libraries.
Chicago Style (17th ed.) CitationHall, Donald W., and Jerry F. Butler. Spicebush Swallowtail, Papilio Troilus Linnaeus (Insecta: Lepidoptera: Papilionidae). The University of Florida George A. Smathers Libraries, 2004.
MLA (9th ed.) CitationHall, Donald W., and Jerry F. Butler. Spicebush Swallowtail, Papilio Troilus Linnaeus (Insecta: Lepidoptera: Papilionidae). The University of Florida George A. Smathers Libraries, 2004.
Warning: These citations may not always be 100% accurate.