Gilluly, James
W.H. Freeman, 1975
Buku Referensi
Gilluly, James
W.H. Freeman, 1968
Buku Teks
Attwell, P.B.
Chapman and Hall, 1976
Buku Teks
Gilluly, James
W.H. Freeman, 1968
Buku Teks
Lange, Oktavii Konstantinovich, 1883-1975
Foreign Languages Publishing House , 196?
Buku Teks