APA
McDougal L. &. C., . (1977). Building English Skills. : McDougal, Littell & Company.
Chicago
McDougal Littell & Company, . 1977. Building English Skills. : McDougal, Littell & Company.
Harvard
McDougal L. &. C., . (1977). Building English Skills. : McDougal, Littell & Company.
MLA
McDougal Littell & Company, . Building English Skills. : McDougal, Littell & Company. 1977.
