Cita APA (7a ed.)
Smith G Chrystal. (1976). Estimating for building and civil engineering works (6 th ed.). Newnes - Butter Worth.
Cita Chicago Style (17a ed.)
Smith G Chrystal. Estimating for Building and Civil Engineering Works. 6 th ed. London: Newnes - Butter Worth, 1976.
Cita MLA (9a ed.)
Smith G Chrystal. Estimating for Building and Civil Engineering Works. 6 th ed. Newnes - Butter Worth, 1976.
Precaución: Estas citas no son 100% exactas.