APA
(1978). Air sampling instruments; for evaluation of atmospheric contaminants. Ohio: s.e.
Chicago
1978. Air sampling instruments; for evaluation of atmospheric contaminants. Ohio: s.e.
Harvard
(1978). Air sampling instruments; for evaluation of atmospheric contaminants. Ohio: s.e.
MLA
Air sampling instruments; for evaluation of atmospheric contaminants. Ohio: s.e. 1978.