Nichols, R. G., & Stevens, L. A. (1957). Are you listening? McGraw-Hill.
Chicagoスタイル(17版)引用形式Nichols, Ralph G., , Leonard A. Stevens. Are You Listening? New York: McGraw-Hill, 1957.
MLA(8版)引用形式Nichols, Ralph G., , Leonard A. Stevens. Are You Listening? McGraw-Hill, 1957.
警告: この引用は必ずしも正確ではありません.