Cita APA (7th ed.)

Canlas, D. B., & Encarnacion, J. Income, education, fertility and employment: Philippines, 1973. s.n.

Cita Chicago (17th ed.)

Canlas, Dante B., i Jose Encarnacion. Income, Education, Fertility and Employment: Philippines, 1973. [S.l: s.n.

Cita MLA (9th ed.)

Canlas, Dante B., i Jose Encarnacion. Income, Education, Fertility and Employment: Philippines, 1973. s.n.