एपीए उद्धरण

Spillard, P. (1975). Sales promotion (2nd ed.). Business books.

शिकागो स्टाइल उद्धरण

Spillard, P. Sales Promotion. 2nd ed. Business books, 1975.

एमएलए उद्धरण

Spillard, P. Sales Promotion. 2nd ed. Business books, 1975.