APA (7th ed.) Citation

Zulkifli Salleh, Rosli Omar, Brown, & Zaini Ujang. (1990). Dunia terancam: Laporan Worldwatch Institute. INSAN.

Chicago Style (17th ed.) Citation

Zulkifli Salleh, Rosli Omar, Brown, and Zaini Ujang. Dunia Terancam: Laporan Worldwatch Institute. Kuala Lumpur: INSAN, 1990.

MLA (8th ed.) Citation

Zulkifli Salleh, et al. Dunia Terancam: Laporan Worldwatch Institute. INSAN, 1990.