Germain, ST.
Triad Publishers Pty.Ltd, 1993
Buku Teks
edited by Ilmari Haapala
Springer, 2012
eBooks
editor, Arie Poldervaart
Geological Society of America, 1963
Buku Teks
edited by Russell O. and Garry D. Mckenzie
Burges Minnepotis, 1974
Buku Teks
Valcke, Sophie, author
Springer, 2012
eBooks