Παραπομπή σε μορφή APA (7η εκδ.)

Aspray, W., Royer, G., & Ocepek, M. G. (2014). Formal and Informal Approaches to Food Policy. Springer International Publishing : Imprint: Springer.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Aspray, William, George Royer, και Melissa G. Ocepek. Formal and Informal Approaches to Food Policy. Cham: Springer International Publishing : Imprint: Springer, 2014.

Παραπομπή σε μορφή MLA (8th εκδ.)

Aspray, William, et al. Formal and Informal Approaches to Food Policy. Springer International Publishing : Imprint: Springer, 2014.