International Cement Microscopy Association & International Conference on Cement Microscopy. (1990). Proceedings of the Twelfth International Conference on Cement Microscopy ((12th : 1990 : Vancouver, Canada).). International Cement Microscopy Association.
Chicago-referens (17:e uppl.)International Cement Microscopy Association och International Conference on Cement Microscopy. Proceedings of the Twelfth International Conference on Cement Microscopy. (12th : 1990 : Vancouver, Canada). Texas: International Cement Microscopy Association, 1990.
MLA-referens (9:e uppl.)International Cement Microscopy Association och International Conference on Cement Microscopy. Proceedings of the Twelfth International Conference on Cement Microscopy. (12th : 1990 : Vancouver, Canada). International Cement Microscopy Association, 1990.