Gaya APA
Crown, D, A., Louvar, J, A. (2001).
Chemical Process Safety Fundamentals with Applications Second Edition .
USA:
PRENTICE HALL NTERNATIOAL.
Gaya MLA
Crown, Daniel, A., Louvar, Joseph, A.
"Chemical Process Safety Fundamentals with Applications Second Edition".
USA:
PRENTICE HALL NTERNATIOAL,
2001.
Text.