Welford, R. (1999). Corporate environmental management: Systems and strategies. Universities Press.
استشهاد بنمط شيكاغوWelford, Richard. Corporate Environmental Management: Systems and Strategies. Hyderabad: Universities Press, 1999.
MLA استشهادWelford, Richard. Corporate Environmental Management: Systems and Strategies. Universities Press, 1999.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.