Gaya APA

Cameron, N. (1981). Geologi lembar Tebingtinggi, Sumatra = The geology of the Tebingtinggi Quadrangle . Bandung: Geological Research and Development Center.

Gaya MLA

Cameron, N.R.. "Geologi lembar Tebingtinggi, Sumatra = The geology of the Tebingtinggi Quadrangle". Bandung: Geological Research and Development Center, 1981. Text.