Diamond, A. S. (Arthur Sigismund)
Methuen , 1959
Buku Teks
Schlauch, Margaret
Dover Publications, 1955
Buku Teks
Laird, Charlton Grant, 1901-
A Fawcett Premier Book, 1966
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Laird, Charlton Grant, 1901-
Fawcett World Library, 1957
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Koester, Almut, author
Routledge, 2006
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