Gaya APA
Keputusan Presiden Republik Indonesia Nomor 48 tahun 1991, tentang " Pengesahan Convention on Wetlands of International Importance Especially as Waterfowl Habitat ". (1995).
Bogor:
Dirjen PHPA.
Gaya MLA
Keputusan Presiden Republik Indonesia Nomor 48 tahun 1991, tentang " Pengesahan Convention on Wetlands of International Importance Especially as Waterfowl Habitat ".
.
Bogor:
Dirjen PHPA,
1995.
Text.