Gaya APA

BALZER, D, ;, K, D, ;, G, A. (2008). Training Course Information System Engineering Geology (ISEG) ; Training Materials Part II . Jawa Barat: Badan Geologi - BGR.

Gaya MLA

BALZER, Dirk, ;, KUHN,, Dirk, ;, GUNTHER,, Andreas. "Training Course Information System Engineering Geology (ISEG) ; Training Materials Part II". Jawa Barat: Badan Geologi - BGR, 2008. Laporan.