Παραπομπή σε μορφή APA (7η εκδ.)

Catholic Worker International Gathering Chestnut Hill, Mass, Beardslee, B., & Gregory, J. (1991). Philosophy of the Green Revolution.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Catholic Worker International Gathering Chestnut Hill, Mass, Bill Beardslee, και Judith Gregory. Philosophy of the Green Revolution. 1991.

Παραπομπή σε μορφή MLA (8th εκδ.)

Catholic Worker International Gathering Chestnut Hill, Mass, et al. Philosophy of the Green Revolution. 1991.