Geological Survey Bulletin
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Howard, Hildegarde. Later Cenozoic avian fossils from near Newport Bay,
Orange County, California [abs.] : Geol. Soc. Am. Bull., v. 59, no. 12, pt. 2, p. 1372
-1373, Dec. 1948. Howard, Waldorf Vivian. L Contour maps : Petroleo
Interamericano, ...