APA

International Congress International Association for Engineering Geology and the Environment, Moore D., Hungr O. & A.A. Balkema (Rotterdam). (1998). Eighth International Congress International Association for Engineering Geology and the Environment. Rotterdam: A.A. Balkema.

Chicago

International Congress International Association for Engineering Geology and the Environment, Moore Dennis, Hungr Oldrich and A.A. Balkema (Rotterdam). 1998. Eighth International Congress International Association for Engineering Geology and the Environment. Rotterdam: A.A. Balkema.

Harvard

International Congress International Association for Engineering Geology and the Environment, Moore D., Hungr O. and A.A. Balkema (Rotterdam). (1998). Eighth International Congress International Association for Engineering Geology and the Environment. Rotterdam: A.A. Balkema.

MLA

International Congress International Association for Engineering Geology and the Environment, Moore Dennis, Hungr Oldrich and A.A. Balkema (Rotterdam). Eighth International Congress International Association for Engineering Geology and the Environment. Rotterdam: A.A. Balkema. 1998.