APA

Pfeiffer L., . (1852). Descriptions of sixty-six new land shells, from the collection of H. Cuming, Esq. : .

Chicago

Pfeiffer L, . 1852. Descriptions of sixty-six new land shells, from the collection of H. Cuming, Esq. : .

Harvard

Pfeiffer L., . (1852). Descriptions of sixty-six new land shells, from the collection of H. Cuming, Esq. : .

MLA

Pfeiffer L, . Descriptions of sixty-six new land shells, from the collection of H. Cuming, Esq. : . 1852.