Gaya APA
WINCHELL, A, N. (1951).
ELEMNT OF OPTICAL MINERALOGY .
United State of America:
WILEY EASTERN PRIVATE LIMITED AMERICAN.
Gaya MLA
WINCHELL, ALEXANDER, N..
"ELEMNT OF OPTICAL MINERALOGY".
United State of America:
WILEY EASTERN PRIVATE LIMITED AMERICAN,
1951.
Textbook.