(1982). Industrial Waste Conference, 1981. Ann Arbor Science.
Chicago Style aipamenaIndustrial Waste Conference, 1981. Mitchigan: Ann Arbor Science, 1982.
MLA aipamenaIndustrial Waste Conference, 1981. Ann Arbor Science, 1982.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.