Cita APA (7th ed.)

Tan, E. A., & Dinglasan, K. (2012). Why the poor have many children. School of Economics.

Cita Chicago (17th ed.)

Tan, Edita Abella, i Katrina Dinglasan. Why the Poor Have Many Children. Quezon City: School of Economics, 2012.

Cita MLA (9th ed.)

Tan, Edita Abella, i Katrina Dinglasan. Why the Poor Have Many Children. School of Economics, 2012.