Cita APA (7th ed.)

Pullum, T. W. (1980). Illustrative analysis: Fertility preferences in Sri Lanka. International Statistical Institute.

Cita Chicago (17th ed.)

Pullum, Thomas W. Illustrative Analysis: Fertility Preferences in Sri Lanka. The Hague: International Statistical Institute, 1980.

Cita MLA (9th ed.)

Pullum, Thomas W. Illustrative Analysis: Fertility Preferences in Sri Lanka. International Statistical Institute, 1980.