Παραπομπή σε μορφή APA (7η εκδ.)

Newman, P., & Allen, R. H. (1967). Population growth rates and economic development in Nicaragua, prepared for the government of Nicaragua and USAID Nicaragua. Robert R. Nathan Associates.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Newman, Peter, και R. H. Allen. Population Growth Rates and Economic Development in Nicaragua, Prepared for the Government of Nicaragua and USAID Nicaragua. Washington, D. C: Robert R. Nathan Associates, 1967.

Παραπομπή σε μορφή MLA (9th εκδ.)

Newman, Peter, και R. H. Allen. Population Growth Rates and Economic Development in Nicaragua, Prepared for the Government of Nicaragua and USAID Nicaragua. Robert R. Nathan Associates, 1967.