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Robert J. Emry, editor
Smithsonian Institution Press 2002 Smithsonian contributions to paleobiology no. 93
Available at 2 libraries
Robert J. Emry and William W. Korth
Smithsonian Institution Press 1989 Smithsonian contributions to paleobiology no. 67
Available at 3 libraries
Robert J. Emry and Richard W. Thorington, Jr
Smithsonian Institution Press 1982 Smithsonian contributions to paleobiology no. 47
[by] Robert J. Emry
Smithsonian Institution Press ; [for sale by the Supt. of Docs., U.S. Govt. Print. Off.] 1973 Smithsonian contributions to paleobiology no. 18