Gaya APA

Bockrath, J, T., Plotnick, F, L. (2011). Contracts and the legal environment for engineers & architects (7). New York: McGraw-Hill.

Gaya MLA

Bockrath, Joseph, T.., Plotnick, Fredric, L.. "Contracts and the legal environment for engineers & architects". 7 New York: McGraw-Hill, 2011. Text.