Gaya APA
Barker, A. (2014).
A Key for Identification of Rock-forming Minerals in THIN-Section (E-Book) .
London:
CRC PRESS.
Gaya MLA
Barker, Andrew.
"A Key for Identification of Rock-forming Minerals in THIN-Section (E-Book)".
London:
CRC PRESS,
2014.
Text.