APA (7th ed.) Citation

Brown, Rosli Omar, Zaini Ujang( 1965-), & Zulkifli Salleh. (1989). Dunia terancam: Lapuran Worldwatch Institute. INSAN.

Chicago Style (17th ed.) Citation

Brown, Rosli Omar, Zaini Ujang( 1965-), and Zulkifli Salleh. Dunia Terancam: Lapuran Worldwatch Institute. Kuala Lumpur: INSAN, 1989.

MLA (8th ed.) Citation

Brown, et al. Dunia Terancam: Lapuran Worldwatch Institute. INSAN, 1989.