edited by Gerald DeWitt Sanders, John Herbert Nelson, M.L. Rosenthal
Macmillan, 1970
Buku Teks SO
Polygon, 1994
Buku Teks SO
Wilmer, Clive
Carcanet, 1994
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Holt Rinehart & Winston, 1972
Buku Teks SO
Yeats, W.B.
Everyman's Library, 1992
Buku Referensi