Special publication (Academy of Natural Sciences of Philadelphia)
Martin Avery Snyder
Academy of Natural Sciences of Philadelphia 2022 Special publication (Academy of Natural Sciences of Philadelphia) 25
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Academy of Natural Sciences of Philadelphia 2003 Special publication (Academy of Natural Sciences of Philadelphia) 21
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Keith E. Camburn and Donald F. Charles
Academy of Natural Sciences of Philadelphia 2000 Special publication (Academy of Natural Sciences of Philadelphia) 18
Fred L. Bookstein ... [et al.]
Academy of Natural Sciences of Philadelphia 1985 Special publication (Academy of Natural Sciences of Philadelphia) 15
:pbk.
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Eugenia B. Böhlke
Academy of Natural Sciences of Philadelphia 1984 Special publication (Academy of Natural Sciences of Philadelphia) 14
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by Ralph B. Stewart
[s.n.] 1930 Special publication (Academy of Natural Sciences of Philadelphia) No. 3
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