APA
USA, . (19). Office of Air Program publication. Research Triangle Park, N.C: Environmental Protection Agency, Office of Air Programs.
Chicago
USA, . 19. Office of Air Program publication. Research Triangle Park, N.C: Environmental Protection Agency, Office of Air Programs.
Harvard
USA, . (19). Office of Air Program publication. Research Triangle Park, N.C: Environmental Protection Agency, Office of Air Programs.
MLA
USA, . Office of Air Program publication. Research Triangle Park, N.C: Environmental Protection Agency, Office of Air Programs. 19.