Leslie D. "Doc" Long, Clifford Gordon, Charles F. Peck, Jack R. Benjamin
McGraw-Hill, 1982
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Bowles, Joseph E., author
McGraw-Hill, 1980
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Friedbert Kind-Barkauskas, Architect Bundesverbend, Deutnchens Zementidustrie, Cologne
Birkhauser, 2002
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Heisler, Sanford I, author
John Wiley & Sons, 1984
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Katz, Donald La Verne, author
McGraw-Hill, 1959
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