APA

United States, . (19). Problems & progress in regulatating ocean dumping of sewage sludge & industrial wastes. [Washington, D.C: .

Chicago

United States, . 19. Problems & progress in regulatating ocean dumping of sewage sludge & industrial wastes. [Washington, D.C: .

Harvard

United States, . (19). Problems & progress in regulatating ocean dumping of sewage sludge & industrial wastes. [Washington, D.C: .

MLA

United States, . Problems & progress in regulatating ocean dumping of sewage sludge & industrial wastes. [Washington, D.C: . 19.