Gaya APA

Gutsell, B., Indonesia.Bakosurtanal, . (1990). The Creation of a digital database for topographic and terrain relief information at Bakosurtanal Indonesia . Cibinong: Bakosurtanal.

Gaya MLA

Gutsell, BV., Indonesia.Bakosurtanal, . "The Creation of a digital database for topographic and terrain relief information at Bakosurtanal Indonesia". Cibinong: Bakosurtanal, 1990. Text.