Hall, D. W., & Butler, J. F. Spicebush Swallowtail Papilio (Pterourus) troilus Linnaeus 1758 (Insecta: Lepidoptera: Papilionidae: Papilioninae). The University of Florida George A. Smathers Libraries.
Chicago Style (17th ed.) CitationHall, Donald W., and Jerry F. Butler. Spicebush Swallowtail Papilio (Pterourus) Troilus Linnaeus 1758 (Insecta: Lepidoptera: Papilionidae: Papilioninae). The University of Florida George A. Smathers Libraries.
MLA (9th ed.) CitationHall, Donald W., and Jerry F. Butler. Spicebush Swallowtail Papilio (Pterourus) Troilus Linnaeus 1758 (Insecta: Lepidoptera: Papilionidae: Papilioninae). The University of Florida George A. Smathers Libraries.
Warning: These citations may not always be 100% accurate.