Nirmal Singh and Devendra Thakur. (2003). Marketing principles and techniques (2 Edition.).
Chicago Edition CitationNirmal Singh and Devendra Thakur. Marketing Principles and Techniques. 2 Edition. Deep & Deep Publications Pvt. Ltd., New Delhi, 2003.
MLA Edition CitationNirmal Singh and Devendra Thakur. Marketing Principles and Techniques. 2 Edition. 2003.
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