APA Style

Wirjodihardjo, K. (1992). Seismic Reef Expression In The North Sumatra Basin. (Proceedings Indonesian Petroleum Association , Twenty First Annual Convention, October 1992) (Volume 1). Jakarta: Indonesian Petroleum Association.

MLA Style

Wirjodihardjo, K.. "Seismic Reef Expression In The North Sumatra Basin. (Proceedings Indonesian Petroleum Association , Twenty First Annual Convention, October 1992)". Volume 1 Jakarta: Indonesian Petroleum Association, 1992. Teknik.