Multi-volume work
Hay, O.P.
1929-1930. Second Bibliography and Catalogue of the Fossil Vertebrata of North America. Carnegie Inst. Wash. Publ. (No. 390).
Volumes
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Hay, O.P., 1929.
Vol. I, Aug 1929: [i]-viii, [1]-916.
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Hay, O.P., 1930.
Vol. II, 27 Jan 1930: [I]-XIV, 1-1074.