Hool, G. A., Kinne, W. S., Zipprodt, R. R., & Griffith, D. M. (1942). Steel and timber structures (2d ed., rev. and enl.). New York: McGraw-Hill Book Company, Inc.
Παραπομπή Chicago StyleHool, George A., W. S. Kinne, Roy Richard Zipprodt, and Datzeth Melvin Griffith. Steel and Timber Structures. 2d ed., rev. and enl. New York: McGraw-Hill Book Company, Inc, 1942.
Παραπομπή MLAHool, George A., W. S. Kinne, Roy Richard Zipprodt, and Datzeth Melvin Griffith. Steel and Timber Structures. 2d ed., rev. and enl. New York: McGraw-Hill Book Company, Inc, 1942.
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