Simpson I S. (1972). Classified Library of Congress Subject Headings. Marcel Dekker.
シカゴスタイル引用形Simpson I S. Classified Library of Congress Subject Headings. London: Marcel Dekker, 1972.
MLA引用形式Simpson I S. Classified Library of Congress Subject Headings. Marcel Dekker, 1972.
警告: この引用は必ずしも正確ではありません.