Gaya APA

STEPHENSON, J. (1991). System Safety 200:a practical guide for planning, managing and conducting system safety programs (1). USA: VAN NOSTRAND REINHOLD.

Gaya MLA

STEPHENSON, JOE. "System Safety 200:a practical guide for planning, managing and conducting system safety programs". 1 USA: VAN NOSTRAND REINHOLD, 1991. Text.