S Mertosono, G. N. (1974). The Tertiary basinal area of central Sumatra. Caltex Pacific Indonesia Pertamina.
Chicago Style (17th ed.) CitationS Mertosono, GAS Nayoan. The Tertiary Basinal Area of Central Sumatra. Caltex Pacific Indonesia Pertamina, 1974.
MLA (8th ed.) CitationS Mertosono, GAS Nayoan. The Tertiary Basinal Area of Central Sumatra. Caltex Pacific Indonesia Pertamina, 1974.
Warning: These citations may not always be 100% accurate.