Gaya APA

sumino, Y., richards, M, H, L, &, J, C. (2001). Research Perspectives on English for Academic Purpose (Cet. 1). New York: Cambridge University Press.

Gaya MLA

sumino, Yoru., richards, Michael, H., Long, &, Jack, C.. "Research Perspectives on English for Academic Purpose". Cet. 1 New York: Cambridge University Press, 2001. Text.