APA-ийн эшлэл(7 дахь хэвлэлт)

Douglas, F., & Baker, H. (1982). Narrative of the life of Frederick Douglas an American slave. Penguin bks..

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Douglas, Frederick, ба Houston.A Baker. Narrative of the Life of Frederick Douglas an American Slave. New York: Penguin bks., 1982.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Douglas, Frederick, ба Houston.A Baker. Narrative of the Life of Frederick Douglas an American Slave. Penguin bks., 1982.