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Robert M. Sullivan has written 3 work(s)
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Cover for 9780892710713 Cover for 9780892710683 Cover for 9780892710850
Natural History Notes of the State Museum of Pennsylvania: November, 1996
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Product Description: Natural History Notes of the State Museum of Pennsylvania,No. 2 for November, 1996, 16 pages. This issue is about "Pennsylvania's Prehistoric Pachyderms". With text, illustrations and fossil photos about extinct mammoths, mastodons and their relatives.
By Kesler A. Randall and Robert M. Sullivan
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Paperback:

9780892710713 | Pennsylvania Historical &, April 1, 2000, cover price $2.95 | About this edition: Natural History Notes of the State Museum of Pennsylvania,No.

Natural History Notes of the State Museum of Pennsylvania: February, 1996
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By Spencer G. Lucas, Kesler A. Randall and Robert M. Sullivan
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Paperback:

9780892710683 | Pennsylvania Historical &, April 1, 2000, cover price $2.95

Natural History Notes of the State Museum of Pennsylvania, August 1999: Pennsylvania's Dinosaurs and Other Triassic Reptiles
cover image for 9780892710850
By Spencer G. Lucas and Robert M. Sullivan
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Paperback:

9780892710850 | Booklet edition (Pennsylvania Historical &, January 1, 2001), cover price $2.95

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