Haynes, Williams, author
D. Van Nostrand, 1959
Buku Referensi
Evans, Bergen, 1904-, author
Random House, 1957
Buku Referensi
Mellinkoff, David, author
[Publisher not identified], 1992
Buku Teks
Nicholson, Margaret, author
Oxford University Press, 1957
Buku Referensi
Schmadel, Lutz D., author
Springer, 2012
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