Gaya APA
Bosson, R, &, V, B. (1977).
The Mining Industry and The Developing Countries .
United States of America:
the inernational bank.
Gaya MLA
Bosson, Rex, &, Varon,, Bension.
"The Mining Industry and The Developing Countries".
United States of America:
the inernational bank,
1977.
Text.