Holt, Rinehart and Winston, 1967
Buku Teks
Holt, Rinehart, 1957
Koleksi Publik
St. Martin's Press, 1978
Buku Teks
edited by Louis G. Locke, William M. Gibson, George Arms
Holt, Rinehart and Winston, 1959
Buku Teks
Widdowson, Peter
Routledge, 1999
Buku Teks