Παραπομπή σε μορφή APA (7η εκδ.)

Brougham, E. G. (1934). Some economic results of various cultural practices in apple orchards of the Hudson valley.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Brougham, Earl G. Some Economic Results of Various Cultural Practices in Apple Orchards of the Hudson Valley. [Ithaca, N.Y.], 1934.

Παραπομπή σε μορφή MLA (8th εκδ.)

Brougham, Earl G. Some Economic Results of Various Cultural Practices in Apple Orchards of the Hudson Valley. 1934.