एपीए उद्धरण

Nickels, W. G. (1982). Marketing principles. Englewood Cliffs, N.J: Prentice-Hall.

शिकागो स्टाइल उद्धरण

Nickels, William G. Marketing Principles. Englewood Cliffs, N.J: Prentice-Hall, 1982.

एमएलए उद्धरण

Nickels, William G. Marketing Principles. Englewood Cliffs, N.J: Prentice-Hall, 1982.