Malaysia. Jabatan Perdana Menteri. (1992). Environmental quality report 1991. Kementerian Sains, Teknologi dan Alam Sekitar.
Chicago Style (17th ed.) CitationMalaysia. Jabatan Perdana Menteri. Environmental Quality Report 1991. Kuala Lumpur: Kementerian Sains, Teknologi dan Alam Sekitar, 1992.
MLA (8th ed.) CitationMalaysia. Jabatan Perdana Menteri. Environmental Quality Report 1991. Kementerian Sains, Teknologi dan Alam Sekitar, 1992.
Warning: These citations may not always be 100% accurate.