Fletcher, J. (1984). Information Sources (Second Edition). ELSEVIER.
Chicagoスタイル(17版)引用形式Fletcher, John. Information Sources (Second Edition). ELSEVIER, 1984.
MLA(8版)引用形式Fletcher, John. Information Sources (Second Edition). ELSEVIER, 1984.
警告: この引用は必ずしも正確ではありません.