Campbell, L.D. (1993). Pliocene Molluscs from the Yorktown and Chowan River Formations in Virginia. Virginia Division of Mineral Resources, Publication. 127: 259 pp., 43 pls.
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Campbell, L.D.
1993
Pliocene Molluscs from the Yorktown and Chowan River Formations in Virginia.
Virginia Division of Mineral Resources, Publication