Gaya APA

Newstrom, J, W., Pierce, J, L. (2008). Leaders the leadership process : reading, self-assessments applications (5 th Ed.). Boston: McGraw-Hill.

Gaya MLA

Newstrom, John, W.., Pierce, Jon, L.. "Leaders the leadership process : reading, self-assessments applications". 5 th Ed. Boston: McGraw-Hill, 2008. Text.