Betrem, J. G. 1932a. I Beschrouwingen over takkenboeboekbestrijding --Voorloopige resultaten van de takkenboeboekbestrijding door middel van takkenboeboeksmeer. Bergecultures, Batavia 61115-1129.
Taxa (in this database) mentioned in this work, by keyword:
Betrem 1932
Funded by the National Science Foundation PEET program (Partnerships for Enhancing Expertise in Taxonomy)
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