APA citiranje

McKay, S. E., Howie, C. A., Thomson, A. H., Whiting, B., & Addis, G. J. (1993). Value of theophylline treatment in patients handicapped by chronic obstructive lung disease.

Citação norma Chicago

McKay, S E., C A. Howie, A H. Thomson, B. Whiting, and G J. Addis. Value of Theophylline Treatment in Patients Handicapped By Chronic Obstructive Lung Disease. 1993.

MLA citiranje

McKay, S E., et al. Value of Theophylline Treatment in Patients Handicapped By Chronic Obstructive Lung Disease. 1993.