APA (7th ed.) Zitazioa

U.S.DepartmentofAgriculture,OfficeofExperimentStations. (1900). Farmers’ bulletin: научное издание. No 26-50.

Chicago Style (17th ed.) Zitazioa

U.S.DepartmentofAgriculture,OfficeofExperimentStations. Farmers’ Bulletin: научное издание. No 26-50. 1900.

MLA (9th ed.) Zitazioa

U.S.DepartmentofAgriculture,OfficeofExperimentStations. Farmers’ Bulletin: научное издание. No 26-50. 1900.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.