Bernal, J. D. (1969). Science in History. All India People's Science Network.
シカゴスタイル引用形Bernal, J. D. Science in History. New Delhi: All India People's Science Network, 1969.
MLA引用形式Bernal, J. D. Science in History. All India People's Science Network, 1969.
警告: この引用は必ずしも正確ではありません.