Gaya APA

Levin, R, I. et al (1982). Quantitative Approaches to Management (Ed. 5.--). Auckland: Mc Graw-Hill International Book Company.

Gaya MLA

Levin, Richard, I.. et al. "Quantitative Approaches to Management". Ed. 5.-- Auckland: Mc Graw-Hill International Book Company, 1982. Text.