(1896). West Virgnia Agricultural Experiment Station: научное издание. Bulletin No 44, april 1896: Practical Entomology. Insects injurious to farm and garden crops. The character of the injury. The insect causing iy. The remedy. Briefly and plainly stated (By A. D. Hopkins and W. E. Rumsey).
Παραπομπή σε μορφή Chicago (17η εκδ.)West Virgnia Agricultural Experiment Station: научное издание. Bulletin No 44, April 1896: Practical Entomology. Insects Injurious to Farm and Garden Crops. The Character of the Injury. The Insect Causing Iy. The Remedy. Briefly and Plainly Stated (By A. D. Hopkins and W. E. Rumsey). 1896.
Παραπομπή σε μορφή MLA (9th εκδ.)West Virgnia Agricultural Experiment Station: научное издание. Bulletin No 44, April 1896: Practical Entomology. Insects Injurious to Farm and Garden Crops. The Character of the Injury. The Insect Causing Iy. The Remedy. Briefly and Plainly Stated (By A. D. Hopkins and W. E. Rumsey). 1896.