Compiled and edited by Dorothy Nyren Curley, Maurice Kramer, Elaine Fialka Kramer
Continuum, 1989
Buku Referensi
Hanes, Ernest
Macmillan, 1937
Buku Teks
Scott, Foresman And Co, 1954
Buku Teks
edited by Martin Tucker
Continuum, 1989
Buku Referensi
edited by Martin Tucker
Ungar, 1988
Buku Referensi