Gaya APA

McDougal, L, &, C, E, I. (1984). Building English Skills Good Level (Pertama). New York: McDougal, Little & Company Evanston, Illinois.

Gaya MLA

McDougal, Little, &, Company, Evanston,, Illinois. "Building English Skills Good Level". Pertama New York: McDougal, Little & Company Evanston, Illinois, 1984. Text.