Vohra, N. D. Qualitative techniques in management/ N. D. Vohra - 3rd ed. - New Delhi: Tata McGraw-Hill, 2007. - xvi, 1049 pages: 25 cm. ISBN: 9780070611931 Subjects--Topical Terms: Management--Mathematical models | Decision making --Mathematical models Dewey Class. No.: 658.4033 / VOH