Gaya APA
Rosenqvist, ., Terkel, .
(1983).
Principles of Extracrtive Metallurgy
(
1)
.
Singapore:
Jo Enterprise PTE Ltd.
Gaya MLA
Rosenqvist, ., Terkel, .
"Principles of Extracrtive Metallurgy".
1
Singapore:
Jo Enterprise PTE Ltd,
1983.
Text.