Gaya APA

Indonesia, N, G. (1988). National geographic vol. 173 No. 1 Januari 1988 : one hundred years (Vol. 173). Jakarta: National Geographic Indonesia.

Gaya MLA

Indonesia, National, Geographic. "National geographic vol. 173 No. 1 Januari 1988 : one hundred years". Vol. 173 Jakarta: National Geographic Indonesia, 1988. Text.