Παραπομπή σε μορφή APA (7η εκδ.)

Gray, R. F., & Gulliver, P. H. (1964). The family estate in Africa: Studies in the role of property in family structure and lineage continuity. Boston University Press.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Gray, Robert F., και P. H. Gulliver. The Family Estate in Africa: Studies in the Role of Property in Family Structure and Lineage Continuity. Boston]: Boston University Press, 1964.

Παραπομπή σε μορφή MLA (9th εκδ.)

Gray, Robert F., και P. H. Gulliver. The Family Estate in Africa: Studies in the Role of Property in Family Structure and Lineage Continuity. Boston University Press, 1964.