Gaya APA
Hurlbut, C., Dana, E, S. (1949).
Minerals & How to Study them, 3rd Edition .
New York:
John Wiley and Sons.
Gaya MLA
Hurlbut, Cornelius., Dana, Edward, Salisbury.
"Minerals & How to Study them, 3rd Edition".
New York:
John Wiley and Sons,
1949.
Text.