Gaya APA

laforge, R, L., kroeber, D, W. (1980). The managers guide to statistics and quatitative methods : grolier business library (-). Amerika serikat: Mcgraw Hill, inc.

Gaya MLA

laforge, R., Lawrence., kroeber, Donald, W.. "The managers guide to statistics and quatitative methods : grolier business library". - Amerika serikat: Mcgraw Hill, inc, 1980. UMUM.