Gaya APA

Luthans, F., Martinko, M, J. (1979). The practice of supervision and management . Aucland: Mc Graw-Hill International Book Company.

Gaya MLA

Luthans, Fred., Martinko, Mark, J.. "The practice of supervision and management". Aucland: Mc Graw-Hill International Book Company, 1979. Text.