Não informado. (1975). Draper world population fund report. Population Crisis Committee.
Chicagoスタイル(17版)引用形式Não informado. Draper World Population Fund Report. Washington: Population Crisis Committee, 1975.
MLA(8版)引用形式Não informado. Draper World Population Fund Report. Population Crisis Committee, 1975.
警告: この引用は必ずしも正確ではありません.