एपीए उद्धरण

Kirby,Mark. (1999). Stratification and differenciation. Mac Millan.

शिकागो स्टाइल उद्धरण

Kirby,Mark. Stratification and Differenciation. London: Mac Millan, 1999.

एमएलए उद्धरण

Kirby,Mark. Stratification and Differenciation. Mac Millan, 1999.