APA-ийн эшлэл(7 дахь хэвлэлт)
Hodges, G. R. (2010). David Ruggles: A radical black abolitionist and the Underground Railroad in New York City. University of North Carolina Press.
Чикаго-гийн эшлэл (17 дахь хэвлэлт)
Hodges, Graham Russell. David Ruggles: A Radical Black Abolitionist and the Underground Railroad in New York City. Chapel Hill: University of North Carolina Press, 2010.
MLA -ийн эшлэл (9 дэх хэвлэлт)
Hodges, Graham Russell. David Ruggles: A Radical Black Abolitionist and the Underground Railroad in New York City. University of North Carolina Press, 2010.
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