Não informado. (1966). Air Pollution Titles. Pennsylvania State University, Center for Air Environmental Studies.
Chicago Style (17th ed.) CitationNão informado. Air Pollution Titles. University Park, Pa: Pennsylvania State University, Center for Air Environmental Studies, 1966.
MLA (8th ed.) CitationNão informado. Air Pollution Titles. Pennsylvania State University, Center for Air Environmental Studies, 1966.
Warning: These citations may not always be 100% accurate.