Introduction to demography:
Spiegelman, Mortimer
Introduction to demography: Mortimer, Spiegelman - Chicago, Ill. : Society of Actuaries, 1955 - xxi, 309 p.:
Demography
312 / SPI
Introduction to demography: Mortimer, Spiegelman - Chicago, Ill. : Society of Actuaries, 1955 - xxi, 309 p.:
Demography
312 / SPI