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By: Van Zwaluwenburg, R. H. (Reyer Herman),Edition:Publication info: Mayagüez, P.R, Porto Rico Agricultural Experiment Station, 1918Volume: no.23 (1918)Series:Holding Institution: Multiple institutionsSubjects:BHL Collections: Expanding Access to Biodiversity Literature
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By: Van Zwaluwenburg, R. H. (Reyer Herman), - Vidal, Rafael,Edition:Publication info: Washington, Govt. Print. Off, 1918Volume: no.16Series:Holding Institution: U.S. Department of Agriculture, National Agricultural LibrarySubjects:BHL Collections:
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By: Van Zwaluwenburg, R. H. (Reyer Herman), - Thomas, H. E. (Harold Edgar), - Puerto Rico Agricultural Experiment Station. - United States. Department of Agriculture. - United States. Department of Agriculture. States Relations Service.Edition:Publication info: Washington, G.P.O. under the supervision of States Relations Service, Office of Experiment Stations, U.S. Dept. of Agriculture, 1918Volume: no.17Series:Holding Institution: U.S. Department of Agriculture, National Agricultural LibrarySubjects:BHL Collections:
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By: Knab, Frederick, - Van Zwaluwenburg, R. H. (Reyer Herman),Type: ArticleIn: Entomological news, and proceedings of the Entomological Section of the Academy of Natural Sciences of PhiladelphiaVolume: 29Series:Issue:Date: 1918Page Range: 138--142Publication Info: Philadelphia, [Entomological Rooms of the Academy of Natural Sciences],Subjects: