Παραπομπή σε μορφή APA (7η εκδ.)

Richards, P. J., & Gooneratne, W. (1980). Basic needs, poverty, and government policies in Sri Lanka. International Labour Office.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Richards, P. J., και Wilbert Gooneratne. Basic Needs, Poverty, and Government Policies in Sri Lanka. Geneva: International Labour Office, 1980.

Παραπομπή σε μορφή MLA (8th εκδ.)

Richards, P. J., και Wilbert Gooneratne. Basic Needs, Poverty, and Government Policies in Sri Lanka. International Labour Office, 1980.