Gaya APA

Stermole, F, J., Stermole, J, M. (2000). Economic Evaluation and Invetment Decision Methods Ninth Edition . USA: investment evaluation corporation.

Gaya MLA

Stermole, Franklin, J., Stermole, John, M. "Economic Evaluation and Invetment Decision Methods Ninth Edition". USA: investment evaluation corporation, 2000. Text.