Tower, G. B. N. (1874). Instructions on modern American bridge building: With practical applications and examples, estimates of quantities, and valuable tables. A. Williams.
Chicago-referens (17:e uppl.)Tower, George Bates Nichols. Instructions on Modern American Bridge Building: With Practical Applications and Examples, Estimates of Quantities, and Valuable Tables. Boston: A. Williams, 1874.
MLA-referens (8:e uppl.)Tower, George Bates Nichols. Instructions on Modern American Bridge Building: With Practical Applications and Examples, Estimates of Quantities, and Valuable Tables. A. Williams, 1874.
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