APA
Silverman J., Hughes E. & Wienbroer D. R. (2002). Rules of thumb. Boston: McGraw-Hill.
Chicago
Silverman Jay, Hughes Elaine and Wienbroer Diana Roberts. 2002. Rules of thumb. Boston: McGraw-Hill.
Harvard
Silverman J., Hughes E. and Wienbroer D. R. (2002). Rules of thumb. Boston: McGraw-Hill.
MLA
Silverman Jay, Hughes Elaine and Wienbroer Diana Roberts. Rules of thumb. Boston: McGraw-Hill. 2002.