APA (7th ed.) Zitazioa

Gilbert, J. (1895). Agricultural investigation at Rothamsted, England during a period of fifty years: научное издание.

Chicago Style (17th ed.) Zitazioa

Gilbert, J.H. Agricultural Investigation at Rothamsted, England During a Period of Fifty Years: научное издание. 1895.

MLA (9th ed.) Zitazioa

Gilbert, J.H. Agricultural Investigation at Rothamsted, England During a Period of Fifty Years: научное издание. 1895.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.