Παραπομπή σε μορφή APA (7η εκδ.)

Richards, P. (1981). Basic needs, poverty and government policies in Sri Lanka. International Labour Office.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Richards, Peter. Basic Needs, Poverty and Government Policies in Sri Lanka. Geneva: International Labour Office, 1981.

Παραπομπή σε μορφή MLA (9th εκδ.)

Richards, Peter. Basic Needs, Poverty and Government Policies in Sri Lanka. International Labour Office, 1981.