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| 100 | _apearl,raymond,1879- | ||
| 245 | 0 | _a.variation and differentiation in ceratophyllum pepper,olive m.(assist.) hagle,florence j.(jt.assist.) | |
| 260 | _a1st.ed. | .Washington,D.C. Carnegie Instit.of Wash. | ||
| 260 | _c1907 | ||
| 942 | _cBOK | ||
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