Gaya APA

Terrel, W, W, D, ;, J, C. (1989). Business statistics for management and economics (ed. 5). USA: Houghton Mifflin Company Boston.

Gaya MLA

Terrel, Wayne, W., Daniel, ;, James, C.. "Business statistics for management and economics". ed. 5 USA: Houghton Mifflin Company Boston, 1989. Text.