Muir, W. L. G. (1976). Coal exploration: Proceedings of the first International Coal Exploration Symposium, London, England, May 18-21, 1976. San Francisco, CA.: Miller Freeman Publications.
Παραπομπή Chicago StyleMuir, William L. G. Coal Exploration: Proceedings of the First International Coal Exploration Symposium, London, England, May 18-21, 1976. San Francisco, CA.: Miller Freeman Publications, 1976.
Παραπομπή MLAMuir, William L. G. Coal Exploration: Proceedings of the First International Coal Exploration Symposium, London, England, May 18-21, 1976. San Francisco, CA.: Miller Freeman Publications, 1976.
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