Hanson, P. (1970). Keypunching (2nd ed.). Prentice-Hall of India.
シカゴスタイル引用形Hanson, Peggy. Keypunching. 2nd ed. New Jersey: Prentice-Hall of India, 1970.
MLA引用形式Hanson, Peggy. Keypunching. 2nd ed. Prentice-Hall of India, 1970.
警告: この引用は必ずしも正確ではありません.