Gaya APA

Cameron, N. (1982). Geologi lembar Medan, Sumatra = The geology of the Medan Quadrangle, Sumatra . Bandung: Geological Research and Development Center.

Gaya MLA

Cameron, N.R.. "Geologi lembar Medan, Sumatra = The geology of the Medan Quadrangle, Sumatra". Bandung: Geological Research and Development Center, 1982. Text.