Citazione APA

Bell, K. L. (1979). Building English skills (Teacher's ed.). McDougal, Littell.

Stile di citazione Chicago

Bell, Kathleen L. Building English Skills. Teacher's ed. Evanston, Ill.: McDougal, Littell, 1979.

Citazione MLA

Bell, Kathleen L. Building English Skills. Teacher's ed. McDougal, Littell, 1979.