Drummond, A. (1988). Typing first course (5th ed.). McGraw-Hill Book Company.
Chicagoスタイル(17版)引用形式Drummond, Archie. Typing First Course. 5th ed. London: McGraw-Hill Book Company, 1988.
MLA(9版)引用形式Drummond, Archie. Typing First Course. 5th ed. McGraw-Hill Book Company, 1988.
警告: この引用は必ずしも正確ではありません.