Wixon, V., & Merchant, P. (2014). Sound of the ax: Aphorisms and poems by William Stafford. University of Pittsburgh Press.
芝加哥风格引文Wixon, Vincent, 与 Paul Merchant. Sound of the Ax: Aphorisms and Poems by William Stafford. Pittsburgh, Pennsylvania: University of Pittsburgh Press, 2014.
MLA引文Wixon, Vincent, 与 Paul Merchant. Sound of the Ax: Aphorisms and Poems by William Stafford. University of Pittsburgh Press, 2014.
警告：这些引文格式不一定是100％准确.