APA(7版)引用形式
Schuller, R. H. (1983). Tough times never last, but tough people do. Thomas Nelson.
Chicagoスタイル(17版)引用形式
Schuller, Robert H. Tough Times Never Last, but Tough People Do. New York: Thomas Nelson, 1983.
MLA(9版)引用形式
Schuller, Robert H. Tough Times Never Last, but Tough People Do. Thomas Nelson, 1983.
警告: この引用は必ずしも正確ではありません.