APA-viite (7. p.)
Muller, E. K., & Wiegman, P. G. (2009). An uncommon passage: Traveling through history on the Great Allegheny Passage Trail. University of Pittsburgh Press.
Chicago-viite (17. p.)
Muller, Edward K., ja Paul G. Wiegman. An Uncommon Passage: Traveling Through History on the Great Allegheny Passage Trail. [Pittsburgh]: University of Pittsburgh Press, 2009.
MLA-viite (9. p.)
Muller, Edward K., ja Paul G. Wiegman. An Uncommon Passage: Traveling Through History on the Great Allegheny Passage Trail. University of Pittsburgh Press, 2009.
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