APA (7th ed.) Zitazioa
Kendrick, S., & Kendrick, P. (2004). Sarah's long walk: The free Blacks of Boston and how their struggle for equality changed America. Beacon Press.
Chicago Style (17th ed.) Zitazioa
Kendrick, Stephen, eta Paul Kendrick. Sarah's Long Walk: The Free Blacks of Boston and How Their Struggle for Equality Changed America. Boston: Beacon Press, 2004.
MLA (9th ed.) Zitazioa
Kendrick, Stephen, eta Paul Kendrick. Sarah's Long Walk: The Free Blacks of Boston and How Their Struggle for Equality Changed America. Beacon Press, 2004.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.