Gaya APA
Johnsen, R, H., Grunwald, E. (1965).
Atoms, moleculs and chemical change .
Englewood Cliffs, NJ:
Prentice Hall.
Gaya MLA
Johnsen, Russell, H.., Grunwald, Ernest.
"Atoms, moleculs and chemical change".
Englewood Cliffs, NJ:
Prentice Hall,
1965.
Text.