Não informado. (1927). Journal of Paleontology. Society of Economic Paleontologists and Mineralogists.
Chicagoスタイル(17版)引用形式Não informado. Journal of Paleontology. Tulsa, Okla: Society of Economic Paleontologists and Mineralogists, 1927.
MLA(8版)引用形式Não informado. Journal of Paleontology. Society of Economic Paleontologists and Mineralogists, 1927.
警告: この引用は必ずしも正確ではありません.