APA aipamena

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

Chicago Style aipamena

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

MLA aipamena

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

Kontuz: berrikusi erreferentzia hauek erabili aurretik.