Gaya APA
Hurlbut, C.
(1977).
Manual of Mineralogy, 19th-ed
.
United States of America:
John Wiley & Sons Ltd..
Gaya MLA
Hurlbut, C.S..
"Manual of Mineralogy, 19th-ed".
United States of America:
John Wiley & Sons Ltd.,
1977.
Text.