Bhalla, A. (1992). Environment, employment and development. International labour office.
استشهاد بنمط شيكاغوBhalla, A.S. Environment, Employment and Development. Geneva: International labour office, 1992.
MLA استشهادBhalla, A.S. Environment, Employment and Development. International labour office, 1992.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.