Gaya APA
Hardjosoemantri, K. (1994).
Environmental Legislation In Indonesia (Third Edition).
Yogyakarta:
Gadjah Mada University Press.
Gaya MLA
Hardjosoemantri, Koesnadi.
"Environmental Legislation In Indonesia".
Third Edition
Yogyakarta:
Gadjah Mada University Press,
1994.
Monograf.