APA Style

Soars, J, ;, S, L, ;, W, S. (2005). American Headway, Workbook 4 . : Oxford University Press.

MLA Style

Soars, John, ;, Soars,, Liz, ;, Wheeldon,, Sylvia. "American Headway, Workbook 4". : Oxford University Press, 2005. BOOK.