Dunford, J. C., & Barbara, K. A. Tetrio Sphinx, Giant Gray Sphinx, Frangipani Hornworm, Pseudosphinx tetrio (Linnaeus) (Insecta: Lepidoptera: Sphingidae). The University of Florida George A. Smathers Libraries.
Chicago Style (17th ed.) CitationDunford, James C., and Kathryn A. Barbara. Tetrio Sphinx, Giant Gray Sphinx, Frangipani Hornworm, Pseudosphinx Tetrio (Linnaeus) (Insecta: Lepidoptera: Sphingidae). The University of Florida George A. Smathers Libraries.
MLA (9th ed.) CitationDunford, James C., and Kathryn A. Barbara. Tetrio Sphinx, Giant Gray Sphinx, Frangipani Hornworm, Pseudosphinx Tetrio (Linnaeus) (Insecta: Lepidoptera: Sphingidae). The University of Florida George A. Smathers Libraries.
Warning: These citations may not always be 100% accurate.