Cazier, M. A. (1938). A new California Polyphylla with notes concerning the variability of certain characters within the genus (Coleoptera-Scarabaeidae). Zenodo.
Cita Chicago Style (17a ed.)Cazier, Mont A. A New California Polyphylla with Notes Concerning the Variability of Certain Characters Within the Genus (Coleoptera-Scarabaeidae). Zenodo, 1938.
Cita MLA (9a ed.)Cazier, Mont A. A New California Polyphylla with Notes Concerning the Variability of Certain Characters Within the Genus (Coleoptera-Scarabaeidae). Zenodo, 1938.
Precaución: Estas citas no son 100% exactas.