Scudder, S. H. (1893). Some Notes on the Early Stages, Especially the Chrysalis, of a Few American Sphingidae. Zenodo.
Cita Chicago (17th ed.)Scudder, Samuel Hubbard. Some Notes on the Early Stages, Especially the Chrysalis, of a Few American Sphingidae. Zenodo, 1893.
Cita MLA (9th ed.)Scudder, Samuel Hubbard. Some Notes on the Early Stages, Especially the Chrysalis, of a Few American Sphingidae. Zenodo, 1893.
Atenció: Aquestes cites poden no estar 100% correctes.