Dyfyniad APA

Jaffee, D. (1998). Levels of socio-economic development theory (2nd ed.). Praeger.

Dyfyniad Arddull Chicago

Jaffee, David. Levels of Socio-economic Development Theory. 2nd ed. Westport, Conn: Praeger, 1998.

Dyfyniad MLA

Jaffee, David. Levels of Socio-economic Development Theory. 2nd ed. Praeger, 1998.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.