Urquhart, L. C. (1959). Civil engineering handbook (4th ed.). McGraw-Hill.
Cita Chicago Style (17a ed.)Urquhart, Leonard Church. Civil Engineering Handbook. 4th ed. New York: McGraw-Hill, 1959.
Cita MLA (9a ed.)Urquhart, Leonard Church. Civil Engineering Handbook. 4th ed. McGraw-Hill, 1959.
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