(1891). West Virgnia Agricultural Experiment Station: научное издание. Bulletin No 15, march 1891: Raspberry gouty-gall beetle (By A. D. Hopkins).
Chicago-čujuhus (17. p.)West Virgnia Agricultural Experiment Station: научное издание. Bulletin No 15, March 1891: Raspberry Gouty-gall Beetle (By A. D. Hopkins). 1891.
MLA-čujuhus (9. p.)West Virgnia Agricultural Experiment Station: научное издание. Bulletin No 15, March 1891: Raspberry Gouty-gall Beetle (By A. D. Hopkins). 1891.
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