Gaya APA
Skoog, D, A. et al (1996).
Fundamentals of Analytical Chemistery .
United State of America:
Harcourt College Pub..
Gaya MLA
Skoog, Douglas, A.. et al.
"Fundamentals of Analytical Chemistery".
United State of America:
Harcourt College Pub.,
1996.
Text.