APA-viite (7. p.)
ebrary, Inc, & Peek, P. M. (2011). Twins in African and diaspora cultures: Double trouble, twice blessed. Indiana University Press.
Chicago-viite (17. p.)
ebrary, Inc, ja Philip M. Peek. Twins in African and Diaspora Cultures: Double Trouble, Twice Blessed. Bloomington: Indiana University Press, 2011.
MLA-viite (9. p.)
ebrary, Inc, ja Philip M. Peek. Twins in African and Diaspora Cultures: Double Trouble, Twice Blessed. Indiana University Press, 2011.
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