.245
a	The Vredefort mountain land in the Southern transvaal and the Northern Orange free state, by A.L. Hall and G.A.F. Molengraaff.
h	Book
.100
a	Hall A.L.
.005
a	00000000000000
.260
a	Amsterdam: Koninklijke Akademie van Wetenschappen, 1925.
b
c	2000
.300
a	xi,222 hlm.
b	26 cm.
c	xi,222 hlm.; 26 cm.
.336
a	Book