Gaya APA
Nyman, C., King, G, B. (1980).
Problems for general chemistry and qualitative analysis (4th.ed.).
New York:
John Wiley \\n Sons.
Gaya MLA
Nyman, C.J.., King, George, Brooks.
"Problems for general chemistry and qualitative analysis".
4th.ed.
New York:
John Wiley \\n Sons,
1980.
Text.