Gaya APA
Lewis, R, J. (2002).
Hazardous chemicals desk reference (5 th Ed.).
New York:
Wiley-Interscience; John Wiley & Sons, Inc.
Gaya MLA
Lewis, Richard, J..
"Hazardous chemicals desk reference".
5 th Ed.
New York:
Wiley-Interscience; John Wiley & Sons, Inc,
2002.
Text.