Dyfyniad APA

Conrad, T. A., & Harris, G. D. (1893). Republication of Conrad's Fossil shells of the Tertiary formations of North America. R. H. Darby, printer Palentological Research institution.

Dyfyniad Arddull Chicago

Conrad, T. A., and Gilbert D. Harris. Republication of Conrad's Fossil Shells of the Tertiary Formations of North America. Washington, D.C., Ithica, N.Y: R. H. Darby, printer Palentological Research institution, 1893.

Dyfyniad MLA

Conrad, T. A., and Gilbert D. Harris. Republication of Conrad's Fossil Shells of the Tertiary Formations of North America. R. H. Darby, printer Palentological Research institution, 1893.

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