Gaya APA
Leeuwen, T, M, V., Pieters, P, E. (2012).
Mineral Deposits of Sulawesi .
Bandung, Jawa Barat, Indonesia:
Geological Agency.
Gaya MLA
Leeuwen, Theo, M, Van., Pieters, Peter, E..
"Mineral Deposits of Sulawesi".
Bandung, Jawa Barat, Indonesia:
Geological Agency,
2012.
Text.