Gaya APA

Subagyo, P, J., Smith, K. (1996). Environmental Hazards: Assessing Risk And Reducing Disaster (Second). London: Routledge.

Gaya MLA

Subagyo, P., Joko., Smith, Keith. "Environmental Hazards: Assessing Risk And Reducing Disaster". Second London: Routledge, 1996. Text.