Gaya APA

Ross, C, W. (1991). Computer Systems for Occupational Safety and Health Management, Second Edition, Revised and Expanded (Second edition). USA: Marcel Dekker.

Gaya MLA

Ross, Charles, W.. "Computer Systems for Occupational Safety and Health Management, Second Edition, Revised and Expanded". Second edition USA: Marcel Dekker, 1991. Koleksi Elektronik.