Hurlbut, Cornelius S., author
John Wiley & Sons, 1971
Buku Teks
Klein, Cornelis, author
John Wiley & Sons, 1985
Buku Referensi
Hurlbut, Cornelius S., author
John Wiley & Sons, 1977
Buku Teks
Mason, Brian, author
W.H. Freeman, 1968
Buku Teks
Blackburn, William H.
W.C. Brown Publishers, 1988
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