Matthew Lockwood Fertility and household labour in Tanzania: demography, economic and society in Rufiji district, 1870-1986 - New York ; Oxford University Press , 1998. - xii,203p. : ill. ; 24cm. Subjects--Topical Terms: Fertility rateHouseholdsSocial conditionsRufiji district, Tanzania LC Class. No.: EAF HB3662.9.R83L63