International Conference on Air Pollution: CSIR Conference Centre, Pretoria, 22-25 October, 1979 : [papers] = Internasionale Konferensie oor Lugbesoedeling ... Pretoria, 22-25 Oktober 1979 
Subtitle: [referate]
Publisher: s.n
Published: 1979
Language: eng
Format: Paperback
ISBN-13: 9780798816656
Subjects: Air; Congresses; Pollution