Haycocks,H.W.
Mortality and other investigations / H.W.Haycocks and W.Perks - Cambridge : University Press , 1955 - 100p.: 22 cm. - vol.1 .
Includes bibliographical references and index.
Demography
Mortality
312.2 / HAY
Mortality and other investigations / H.W.Haycocks and W.Perks - Cambridge : University Press , 1955 - 100p.: 22 cm. - vol.1 .
Includes bibliographical references and index.
Demography
Mortality
312.2 / HAY