Spiegelman, Mortimer.
introduction to demography / Mortimer Spiegelman - Chicago: Society of Actuaries US, 1955 - xxi, 309p.: ill.; 24 cm.
Includes bibliographical references and index.
Demography
312 / SPI
introduction to demography / Mortimer Spiegelman - Chicago: Society of Actuaries US, 1955 - xxi, 309p.: ill.; 24 cm.
Includes bibliographical references and index.
Demography
312 / SPI