Gaya APA

davis, A., Hartati, R. (1991). Procedures Manual For The Analiysis of Geochemical Samples For The Southern Sumatra Geological And Mineral Exploration Project . Bandung: Pusat Sumber Daya Geologi.

Gaya MLA

davis, A.E., Hartati, R.D.. "Procedures Manual For The Analiysis of Geochemical Samples For The Southern Sumatra Geological And Mineral Exploration Project". Bandung: Pusat Sumber Daya Geologi, 1991. Geokimia.