Bhalla, A. (1992). Environment, employment and development. International labour office.
Chicago Stili AlıntıBhalla, A.S. Environment, Employment and Development. Geneva: International labour office, 1992.
MLA AlıntıBhalla, A.S. Environment, Employment and Development. International labour office, 1992.
Uyarı: Bu alıntı herzaman %100 doğru olmayabilir..