Gaya APA

Council, T, N, R., Indonesia.Bakosurtanal, . (1980). Laporan partisipasi 24th International Geographical Congress dan 15th IGU General Assembly Tokyo, Japan (Dok.No.12/1980) . Cibinong: Bakosurtanal.

Gaya MLA

Council, The, National, Research., Indonesia.Bakosurtanal, . "Laporan partisipasi 24th International Geographical Congress dan 15th IGU General Assembly Tokyo, Japan (Dok.No.12/1980)". Cibinong: Bakosurtanal, 1980. Text.