Gaya APA

Johnson, C, C., Oemar, S. (1991). CONTROLLING THE QUALITY OF GEOCHEMICAL DATA PRODUCED BY THE DIRECTORATE OF MINERAL RESORCES CHEMICAL LABORATORY . Bandung: Directorate of Mineral Resorces.

Gaya MLA

Johnson, C., C,., Oemar, S. "CONTROLLING THE QUALITY OF GEOCHEMICAL DATA PRODUCED BY THE DIRECTORATE OF MINERAL RESORCES CHEMICAL LABORATORY". Bandung: Directorate of Mineral Resorces, 1991. Geokimia.