APA引文

Drummond, A., & Coles-Mogford, A. (1989). Practical typing exercises (3rd ed.). McGraw-Hill.

Chicago Style (17th ed.) Citation

Drummond, Archie, and Anne Coles-Mogford. Practical Typing Exercises. 3rd ed. London: McGraw-Hill, 1989.

MLA引文

Drummond, Archie, and Anne Coles-Mogford. Practical Typing Exercises. 3rd ed. McGraw-Hill, 1989.