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Howsam, P. (1990). Microbiology in Civil Engineering : Proceedings of the Federation of European Microbiological Societies Symposium Held at Cranfield Institute of Technology 3-5 September 1990 . America: E. & F.N. Spon.

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Howsam, P. Microbiology in Civil Engineering : Proceedings of the Federation of European Microbiological Societies Symposium Held at Cranfield Institute of Technology 3-5 September 1990. America: E. & F.N. Spon, 1990. Text.

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Howsam, P. Microbiology in Civil Engineering : Proceedings of the Federation of European Microbiological Societies Symposium Held at Cranfield Institute of Technology 3-5 September 1990. America: E. & F.N. Spon, 1990. Text.

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Howsam, P. Microbiology in Civil Engineering : Proceedings of the Federation of European Microbiological Societies Symposium Held at Cranfield Institute of Technology 3-5 September 1990. America: E. & F.N. Spon, 1990. Print.