APA (7th ed.) Zitazioa
Griffler, K. P. (2010). Front line of freedom: African Americans and the forging of the Underground Railroad in the Ohio Valley (Paperback edition.). The University Press of Kentucky.
Chicago Style (17th ed.) Zitazioa
Griffler, Keith P. Front Line of Freedom: African Americans and the Forging of the Underground Railroad in the Ohio Valley. Paperback edition. Lexington, Kentucky: The University Press of Kentucky, 2010.
MLA (9th ed.) Zitazioa
Griffler, Keith P. Front Line of Freedom: African Americans and the Forging of the Underground Railroad in the Ohio Valley. Paperback edition. The University Press of Kentucky, 2010.
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