Proceedings of the Geologists� Association
Proceedings of the Geologists' Association > 1996 > 107 > 4 > 281-286
Proceedings of the Geologists' Association > 1996 > 107 > 4 > 287-298
Proceedings of the Geologists' Association > 1996 > 107 > 4 > 271-280
Proceedings of the Geologists' Association > 1997 > 108 > 1 > 57-70
Proceedings of the Geologists' Association > 1997 > 108 > 1 > 25-38
Proceedings of the Geologists' Association > 1997 > 108 > 1 > 49-56
Proceedings of the Geologists' Association > 1997 > 108 > 1 > 71-77