APA (7e ed.) Bronvermelding

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

Chicago (17e ed.) Bronvermelding

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

MLA (9e ed.) Bronvermelding

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

Let op: Deze citaties zijn niet altijd 100% accuraat.