Παραπομπή σε μορφή APA (7η εκδ.)

Sarre, P., & Blunden, J. (1991). Environment, population and development. Hodder & Stoughton in association with The Open University.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Sarre, Philip, και John Blunden. Environment, Population and Development. London: Hodder & Stoughton in association with The Open University, 1991.

Παραπομπή σε μορφή MLA (9th εκδ.)

Sarre, Philip, και John Blunden. Environment, Population and Development. Hodder & Stoughton in association with The Open University, 1991.