एपीए उद्धरण

Engel, J. F. (1972). Market Segmentation. Holt Rine hart and Winston.

शिकागो स्टाइल उद्धरण

Engel, James F. Market Segmentation. New york: Holt Rine hart and Winston, 1972.

एमएलए उद्धरण

Engel, James F. Market Segmentation. Holt Rine hart and Winston, 1972.