Jaffee, D. (1998). Levels of socio-economic development theory (2nd ed.). Praeger.
Chicago Style (17. basım) AtıfJaffee, David. Levels of Socio-economic Development Theory. 2nd ed. Westport, Conn: Praeger, 1998.
MLA (9th ed.) AtıfJaffee, David. Levels of Socio-economic Development Theory. 2nd ed. Praeger, 1998.
Uyarı: Bu alıntı herzaman %100 doğru olmayabilir..