APA
National Seminar on Population and Development (1980 : Arusha T., United Nations. Economic Commission for Africa & International Labour Organisation. (1980). National Seminar on Population and Development, 17-24 February 1980, Tanzania. [Addis Ababa]: The Commission.
Chicago
National Seminar on Population and Development (1980 : Arusha Tanzania), United Nations. Economic Commission for Africa and International Labour Organisation. 1980. National Seminar on Population and Development, 17-24 February 1980, Tanzania. [Addis Ababa]: The Commission.
Harvard
National Seminar on Population and Development (1980 : Arusha T., United Nations. Economic Commission for Africa and International Labour Organisation. (1980). National Seminar on Population and Development, 17-24 February 1980, Tanzania. [Addis Ababa]: The Commission.
MLA
National Seminar on Population and Development (1980 : Arusha Tanzania), United Nations. Economic Commission for Africa and International Labour Organisation. National Seminar on Population and Development, 17-24 February 1980, Tanzania. [Addis Ababa]: The Commission. 1980.