APA Style

Untung, M., Sato, Y. (1978). Gravity and Geological Studies in Jawa, Indonesia . Indonesia: Geological Survey of Indonesia & Geological Survey of Japan.

MLA Style

Untung, Mohamad., Sato, Yoshiaki. "Gravity and Geological Studies in Jawa, Indonesia". Indonesia: Geological Survey of Indonesia & Geological Survey of Japan, 1978. Text.