APA (7th ed.) Zitazioa
Pen, R. (2010). I wonder as I wander: The life of John Jacob Niles. University Press of Kentucky.
Chicago Style (17th ed.) Zitazioa
Pen, Ronald. I Wonder as I Wander: The Life of John Jacob Niles. Lexington, Ky: University Press of Kentucky, 2010.
MLA (9th ed.) Zitazioa
Pen, Ronald. I Wonder as I Wander: The Life of John Jacob Niles. University Press of Kentucky, 2010.
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