Knodel, J. E. (1974). The decline of fertility in Germany, 1871-1939: By John E. Knodel. Princeton University Press.
Chicagoスタイル(17版)引用形式Knodel, John E. The Decline of Fertility in Germany, 1871-1939: By John E. Knodel. Princeton, New Jersey: Princeton University Press, 1974.
MLA(8版)引用形式Knodel, John E. The Decline of Fertility in Germany, 1871-1939: By John E. Knodel. Princeton University Press, 1974.
警告: この引用は必ずしも正確ではありません.