Da Costa, J. L., Tock, E. P. C., & Boey, H. K. (1971). Lung disease with chronic obstruction in opium smokers in Singapore: Clinical, electrocardiographic, radiological, functional, and pathological features.
Chicago Style CitationDa Costa, J. L., E. P. C. Tock, and H. K. Boey. Lung Disease With Chronic Obstruction in Opium Smokers in Singapore: Clinical, Electrocardiographic, Radiological, Functional, and Pathological Features. 1971.
MLA CitationDa Costa, J. L., E. P. C. Tock, and H. K. Boey. Lung Disease With Chronic Obstruction in Opium Smokers in Singapore: Clinical, Electrocardiographic, Radiological, Functional, and Pathological Features. 1971.
Warning: These citations may not always be 100% accurate.