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020 _a
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037 _c
082 _a580 05 BIO
100 _a
245 _aBIOLOGICAL ABSTRACTS (J)
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250 _a
260 _aPENNSYLVANIA
_bBIOLOGICAL ABSTRACTS
_c1967
300 _a11256
_fHB
500 _a
590 _d
630 _a
650 _aBIOLOGICAL ABSTRACTS (J)
942 _cCR
999 _c264661
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