01012cam a22003011 4500 gs 66000257 DLC 20260227111419.0 771018s1966 dcuab b f000 0 eng c gs 66000257 (OCoLC)3351539 U.S. Geol. Survey. Libr. AzU ISS DLC premarc QE75 .P9 no. 531 I 19.16:531 Ladd, Harry Stephen, 1899- Chitons and Gastropods (Haliotidae through Adeorbidae) from the western Pacific Islands, by Harry S. Ladd. Washington, U.S. Govt. Print. Off., 1966. iv, 98 p. illus., maps, 16 plates. 29 cm. Geological survey professional paper 531 Bibliography: p. 89-91. Mollusks, Fossil. Paleontology Tertiary. Paleontology Oceania. Geology Oceania. Paleoecology. Geological Survey (U.S.). Professional paper ; 531. 30244 30244