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1
المساهمون: Krukoff, B.A. (identifier), Hinton, G.B. (collector) (field number: 5333)
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2
المساهمون: Krukoff, B.A. (identifier), Bernoulli; Cario (collector) (field number: 1744)
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3
المساهمون: Krukoff, B.A. (identifier), Nelson, B.W.; Ongley, J.C.; Campbell, D.G.; Monteiro, O.P. (collector) (field number: P 22104)
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4
المساهمون: Krukoff, B.A. (identifier), Kerr, W.E.; Ferraroni, J.J.; Ramos, J.F.; Prance, G.T. (collector) (field number: 23438)
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5
المساهمون: Krukoff, B.A. (identifier), Prance, G.T. (collector) (field number: 17690)
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6
المساهمون: Krukoff, B.A. (identifier), Souza, R.; Anderson, W.R.; Santos, R.R.; Fonsêca, S.G. (collector) (field number: 10598)
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7
المساهمون: Krukoff, B.A. (identifier), Nelson, B.W.; Ramos, J.F.; Prance, G.T.; Fidalgo, O. (collector) (field number: 21618)
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8
المساهمون: Krukoff, B.A. (identifier), Steward, W.C.; Ramos, J.F.; Lima, J.F.; Berg, C.C.; Monteiro, O.P. (collector) (field number: Pl8402)
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9
المساهمون: Krukoff, B.A. (identifier), Souza, R.; Anderson, W.R.; Santos, R.R.; Fonsêca, S.G. (collector) (field number: 11038)
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10
المساهمون: Krukoff, B.A. (identifier), Steward, W.C.; Ramos, J.F.; Lima, J.F.; Berg, C.C.; Monteiro, O.P. (collector) (field number: P18651)