Gaya APA
Sienko, M, J, &, P, R, A. (1966).
Chemistry: Principles and Properties .
New York:
McGrawhill Book Company.
Gaya MLA
Sienko, Michell, J, &, Plane,, Robert, A.
"Chemistry: Principles and Properties".
New York:
McGrawhill Book Company,
1966.
Text.