Gaya APA

Zerbe, R, O., Dively, D, D. (1994). Benefit cost analysis : in theory and practice (1994). : New York : HarperCollins College Publ,.

Gaya MLA

Zerbe, Richard, O., Dively, Dwight, D. "Benefit cost analysis : in theory and practice". 1994 : New York : HarperCollins College Publ,, 1994. Text.