Cita APA

Knodel, J. (1974). The decline of fertility in Germany: 1871 - 1939. Princeton Univ. Press.

Citación estilo Chicago

Knodel, John. The Decline of Fertility in Germany: 1871 - 1939. Princeton, NJ: Princeton Univ. Press, 1974.

Cita MLA

Knodel, John. The Decline of Fertility in Germany: 1871 - 1939. Princeton Univ. Press, 1974.