APA (7th ed.) Citation

Singer, H. W., & Ansari, J. A. (1982). Rich and poor countries (3. ed.). Allen & Unwin.

Chicago Style (17th ed.) Citation

Singer, Hans W., and Javed A. Ansari. Rich and Poor Countries. 3. ed. London u.a: Allen & Unwin, 1982.

MLA (9th ed.) Citation

Singer, Hans W., and Javed A. Ansari. Rich and Poor Countries. 3. ed. Allen & Unwin, 1982.