Παραπομπή σε μορφή APA (7η εκδ.)

ProQuest (Firm) & Scharnhorst, G. (2010). Twain in his own time: A biographical chronicle of his life, drawn from recollections, interviews, and memoirs by family, friends, and associates. University of Iowa Press.

Παραπομπή σε μορφή Chicago (17η εκδ.)

ProQuest (Firm) και Gary Scharnhorst. Twain in His Own Time: A Biographical Chronicle of His Life, Drawn from Recollections, Interviews, and Memoirs by Family, Friends, and Associates. Iowa City: University of Iowa Press, 2010.

Παραπομπή σε μορφή MLA (9th εκδ.)

ProQuest (Firm) και Gary Scharnhorst. Twain in His Own Time: A Biographical Chronicle of His Life, Drawn from Recollections, Interviews, and Memoirs by Family, Friends, and Associates. University of Iowa Press, 2010.