APA-čujuhus (7. p.)

U.S.DepartmentofAgriculture,OfficeofExperimentStations. (1899). Farmers’ bulletin: научное издание. No 51-75.

Chicago-čujuhus (17. p.)

U.S.DepartmentofAgriculture,OfficeofExperimentStations. Farmers’ Bulletin: научное издание. No 51-75. 1899.

MLA-čujuhus (9. p.)

U.S.DepartmentofAgriculture,OfficeofExperimentStations. Farmers’ Bulletin: научное издание. No 51-75. 1899.

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