APA aipamena

Johnston, R. N., Lockhart, W., Smith, D. H., & Cadman, N. K. (1961). A Trial of Phenethicillin in Chronic Bronchitis.

Chicago Style aipamena

Johnston, R. N., W. Lockhart, D. H. Smith, and N. K. Cadman. A Trial of Phenethicillin in Chronic Bronchitis. 1961.

MLA aipamena

Johnston, R. N., W. Lockhart, D. H. Smith, and N. K. Cadman. A Trial of Phenethicillin in Chronic Bronchitis. 1961.