Schenck, H. G., & Childs, T. S. (1942). Significance of Lepidocyclina (Lepidocyclina) Californica: New species, in the Vaqueros formation (Tertiary), California. Stanford University Press.
Cita Chicago (17th ed.)Schenck, Hubert Gregory, i Theodore Scott Childs. Significance of Lepidocyclina (Lepidocyclina) Californica: New Species, in the Vaqueros Formation (Tertiary), California. Stanford, Calif.: Stanford University Press, 1942.
Cita MLA (8th ed.)Schenck, Hubert Gregory, i Theodore Scott Childs. Significance of Lepidocyclina (Lepidocyclina) Californica: New Species, in the Vaqueros Formation (Tertiary), California. Stanford University Press, 1942.
Atenció: Aquestes cites poden no estar 100% correctes.