American Institute of Chemical Engineers & Conference. (1990). 1990 hazardous material spills: Conference and exposition, May 13-17, 1990, Hyatt Regency, Houston. s.n.
Čikaški stil citiranja (17. izdanje)American Institute of Chemical Engineers i Conference. 1990 Hazardous Material Spills: Conference and Exposition, May 13-17, 1990, Hyatt Regency, Houston. s.l: s.n, 1990.
MLA način citiranja (9. izdanje)American Institute of Chemical Engineers i Conference. 1990 Hazardous Material Spills: Conference and Exposition, May 13-17, 1990, Hyatt Regency, Houston. s.n, 1990.
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