एपीए उद्धरण

Kotler, P. (2001). Principles of marketing. PHALL.

शिकागो स्टाइल उद्धरण

Kotler, Philip. Principles of Marketing. PHALL, 2001.

एमएलए उद्धरण

Kotler, Philip. Principles of Marketing. PHALL, 2001.