Gaya APA

Thomson, A., Martinet, A. (1995). A Practical English Grammar : Exercise 1 (ed 3). New York: Oxford Uniersity Press.

Gaya MLA

Thomson, A.J., Martinet, A.V.. "A Practical English Grammar : Exercise 1". ed 3 New York: Oxford Uniersity Press, 1995. Text.