Παραπομπή σε μορφή APA (7η εκδ.)

Johnston, J. F. W. (1850). Lectures on the general relations which science bears to practical agriculture: Delivered before the New-York State Agricultural Society. C.M. Saxton.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Johnston, Jas. F. W. Lectures on the General Relations Which Science Bears to Practical Agriculture: Delivered Before the New-York State Agricultural Society. New York: C.M. Saxton, 1850.

Παραπομπή σε μορφή MLA (8th εκδ.)

Johnston, Jas. F. W. Lectures on the General Relations Which Science Bears to Practical Agriculture: Delivered Before the New-York State Agricultural Society. C.M. Saxton, 1850.