Gaya APA

Swanson, C, P., Hardjasoemantri, K. (NULL). Environmental legislation in Indonesia . Yogyakarta:: Yogyakarta: Gajah Mada University Press; 1982.

Gaya MLA

Swanson, Carl, P.., Hardjasoemantri, Koesnadi. "Environmental legislation in Indonesia". Yogyakarta:: Yogyakarta: Gajah Mada University Press; 1982, NULL. Text.