Gaya APA
Hardjasoemantri, K. (1994).
Environmental Legislation In Indonesia (3rd.ed).
Yogyakarta:
Gadjah Mada University Press.
Gaya MLA
Hardjasoemantri, Koesnadi.
"Environmental Legislation In Indonesia".
3rd.ed
Yogyakarta:
Gadjah Mada University Press,
1994.
Text.