Gaya APA
Stephans, R, A. (2004).
System Safety for the 21st Century: The Updated and Revised Edition of System Safety 2000 (-).
New York:
John Wiley & Sons, Inc.
Gaya MLA
Stephans, Richard, A.
"System Safety for the 21st Century: The Updated and Revised Edition of System Safety 2000".
-
New York:
John Wiley & Sons, Inc,
2004.
Book.