Publication
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Phytochemistry as a means for checking erroneously localized specimens Article
Flora Malesiana Bulletin, 24(1), 1801-1801.January 1969
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Expeditions and other exploration Article
Flora Malesiana Bulletin, 24(1), 1783-1789.January 1969
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The Mountain Elevation Effect Article
Flora Malesiana Bulletin, 23(1), 1700-1700.January 1969
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Miscellaneous information Article
Flora Malesiana Bulletin, 23(1), 1688-1693.January 1969
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Comparison of records of baleen plates and of ear plugs in female Fin Whales, Balaenoptera physalus (Linnaeus, 1758) Article
Bijdragen tot de dierkunde, 39(1), 81-97.January 1969
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The Malayan Cyprinoid fishes of the family Homalopteridae Article
Zoologische Mededelingen, 43(18), 213-237.January 1969
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The type-material of Indonesian Tachinidae (Diptera) in the Zoological Museum, Amsterdam Article
Beaufortia, 16(213), 87-107.January 1969
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Obituaries and biographical notes Article
Flora Malesiana Bulletin, 24(1), 1775-1776.January 1969