Russell, S. E. J. (1961). World population and world food supplies.
シカゴスタイル引用形Russell, Sir E John. World Population and World Food Supplies. George Allen & Unwin Ltd., London, 1961.
MLA引用形式Russell, Sir E John. World Population and World Food Supplies. 1961.
警告: この引用は必ずしも正確ではありません.