Cita APA (7th ed.)

Sirageldin, I. (1979). Research in human capital and development. JAI Press.

Cita Chicago (17th ed.)

Sirageldin, Ismail. Research in Human Capital and Development. Greenwich, Conn: JAI Press, 1979.

Cita MLA (9th ed.)

Sirageldin, Ismail. Research in Human Capital and Development. JAI Press, 1979.