Bell, K. L. (1979). Building English skills (Teacher's ed.). McDougal, Littell.
Chicago Style (17th ed.) CitationBell, Kathleen L. Building English Skills. Teacher's ed. Evanston, Ill.: McDougal, Littell, 1979.
Cita MLABell, Kathleen L. Building English Skills. Teacher's ed. McDougal, Littell, 1979.
Atenció: Aquestes cites poden no estar 100% correctes.