Gaya APA

Batstone, R. et al (1989). The Safe Disposal of Hazardous Wastes : The Special Needs and Problems of Developing Countries. Vol. II . Washington: The World Bank.

Gaya MLA

Batstone, Roger. et al. "The Safe Disposal of Hazardous Wastes : The Special Needs and Problems of Developing Countries. Vol. II". Washington: The World Bank, 1989. print.