APA(7版)引用形式
Ballard, E. G. (1971). Philosophy at the crossroads. Louisiana State University Press.
Chicagoスタイル(17版)引用形式
Ballard, Edward G. Philosophy at the Crossroads. Baton Rouge: Louisiana State University Press, 1971.
MLA(9版)引用形式
Ballard, Edward G. Philosophy at the Crossroads. Louisiana State University Press, 1971.
警告: この引用は必ずしも正確ではありません.