Gaya APA

Wingard, G, A, &, P. (1985). The Teaching of English as an International Language - A Practical Guide (1). England: Collins ELT.

Gaya MLA

Wingard, Gerry, Abbott, &, Peter. "The Teaching of English as an International Language - A Practical Guide". 1 England: Collins ELT, 1985. Buku Analog.