Safiullah, S. (1989). Science environment and disaster. Dr. J.U Ahmed : IIEADM.
Chicago Style aipamenaSafiullah, Syed. Science Environment and Disaster. Dhaka, Bangladesh: Dr. J.U Ahmed : IIEADM, 1989.
MLA aipamenaSafiullah, Syed. Science Environment and Disaster. Dr. J.U Ahmed : IIEADM, 1989.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.