Gaya APA

dowling, E, T., dutch, K. (2006). more than 30 million schaum's outlines sold; introduction to mathematical economics (-). New York: Mc Graw Hill.

Gaya MLA

dowling, Edward, T.., dutch, Kenneth. "more than 30 million schaum's outlines sold; introduction to mathematical economics". - New York: Mc Graw Hill, 2006. Text.