Παραπομπή σε μορφή APA (7η εκδ.)

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

Παραπομπή σε μορφή Chicago (17η εκδ.)

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

Παραπομπή σε μορφή MLA (9th εκδ.)

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