Gaya APA

BUTCHER, K, F., GAFFNEY, B, M. (1995). AMERICAN CONTEXTS : A GRAMMAR WITH READINGS . NEW JERSEY: .

Gaya MLA

BUTCHER, KATHRYN, F.., GAFFNEY, BARBARA, M.. "AMERICAN CONTEXTS : A GRAMMAR WITH READINGS". NEW JERSEY: , 1995. Prodi S1 Sastra Inggris.