Gaya APA
Pecsok, R, L, (.
(1976).
Modern Methods of Chemical Analysis, 2nd-ed
.
Canada:
John Wiley & Sons, Inc..
Gaya MLA
Pecsok, Robert, L, (a.o).
"Modern Methods of Chemical Analysis, 2nd-ed".
Canada:
John Wiley & Sons, Inc.,
1976.
Text.