Gaya APA

Kreber, D, W., Laforge, R, L. (1980). The manager's guide to statistics and quantitative methods . Danbury, Connecticut: Grolier Incorporated.

Gaya MLA

Kreber, Donald, W.., Laforge, R., Lawrence. "The manager's guide to statistics and quantitative methods". Danbury, Connecticut: Grolier Incorporated, 1980. Text.