APA-ийн эшлэл(7 дахь хэвлэлт)

Whitman, W., & Erkkila, B. (2011). Walt Whitman's songs of male intimacy and love: "Live oak, with moss" and "Calamus". University of Iowa Press.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Whitman, Walt, ба 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 -ийн эшлэл (9 дэх хэвлэлт)

Whitman, Walt, ба Betsy Erkkila. Walt Whitman's Songs of Male Intimacy and Love: "Live Oak, with Moss" and "Calamus". University of Iowa Press, 2011.