Παραπομπή σε μορφή APA (7η εκδ.)

Bird, H. S. (1919). Important factors in the inter-state transportation of fruits and vegetables.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Bird, Harold Sterling. Important Factors in the Inter-state Transportation of Fruits and Vegetables. 1919.

Παραπομπή σε μορφή MLA (8th εκδ.)

Bird, Harold Sterling. Important Factors in the Inter-state Transportation of Fruits and Vegetables. 1919.