APA-čujuhus (7. p.)
Stephans, R. A., & Stephenson, J. (2004). System safety for the 21st century (Updated and rev. ed. of System safety 2000.). Wiley-Interscience.
Chicago-čujuhus (17. p.)
Stephans, Richard A., juo Joe Stephenson. System Safety for the 21st Century. Updated and rev. ed. of System safety 2000. Hoboken, N.J.: Wiley-Interscience, 2004.
MLA-čujuhus (9. p.)
Stephans, Richard A., juo Joe Stephenson. System Safety for the 21st Century. Updated and rev. ed. of System safety 2000. Wiley-Interscience, 2004.
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