Whitman, W., & Erkkila, B. (2011). Walt Whitman's songs of male intimacy and love: "Live oak, with moss" and "Calamus". University of Iowa Press.
Chicago-referens (17:e uppl.)Whitman, Walt, och Betsy Erkkila. Walt Whitman's Songs of Male Intimacy and Love: "Live Oak, with Moss" and "Calamus". Iowa City: University of Iowa Press, 2011.
MLA-referens (9:e uppl.)Whitman, Walt, och Betsy Erkkila. Walt Whitman's Songs of Male Intimacy and Love: "Live Oak, with Moss" and "Calamus". University of Iowa Press, 2011.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.