APA (7e ed.) Bronvermelding

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.

Chicago (17e ed.) Bronvermelding

Conrad, T. A., en 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.

MLA (9e ed.) Bronvermelding

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