Cozynsen, M. (1956). Pharmacologisch onderzoek van Croton ovalifolius en Croton flavens: Pharmacological investigations on Croton ovalifolius and Croton flavens. With a summary in English.
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Tohutoru Kātū Chicago (17th ed.)
Cozynsen, Martinus. Pharmacologisch Onderzoek Van Croton Ovalifolius En Croton Flavens: Pharmacological Investigations on Croton Ovalifolius and Croton Flavens. With a Summary in English. Utrecht, 1956.
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Tohutoro MLA (9th ed.)
Cozynsen, Martinus. Pharmacologisch Onderzoek Van Croton Ovalifolius En Croton Flavens: Pharmacological Investigations on Croton Ovalifolius and Croton Flavens. With a Summary in English. 1956.
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Kua rahua te tārua ki te papatopenga
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