Gaya APA
Hardjasoemantri, K. (1983).
Environmental legislation : an indonesian experience .
Yogyakarta:
Gajah Mada Universiy Press.
Gaya MLA
Hardjasoemantri, Koesnadi.
"Environmental legislation : an indonesian experience".
Yogyakarta:
Gajah Mada Universiy Press,
1983.
Text.