1. Late Pleistocene marine paleoecology and zoogeography in central California.;Addicott W. O.;US Geol. Surv. Prof. Pap.,1966
2. Late Pliocene mollusks from San Francisco Peninsula, California, and their paleogeographic significance.;Addicott W. O.;Proc. Calif. Acad. Sci.,1969
3. Miocene gastropods and biostratigraphy of the Kern River Area.;Addicott W. O.;US Geol. Surv. Prof. Pap.,1970
4. Molluscan paleontology of the Lower Miocene Clallam Formation, northwestern Washington.;Addicott W. O.;US Geol. Surv. Prof. Pap.,1976