Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (8a ed.)

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