Heard, B. E. (1969). Pathology of chronic bronchitis and emphysema.
Chicago Edition CitationHeard, Brian Edyvean. Pathology of Chronic Bronchitis and Emphysema. 1969.
MLA Edition CitationHeard, Brian Edyvean. Pathology of Chronic Bronchitis and Emphysema. 1969.
Warning: These citations may not always be 100% accurate.