APA-referens (7:e uppl.)

ebrary, Inc, Voelkel, N. F., & MacNee, W. (2008). Chronic obstructive lung diseases (2nd ed.). B C Decker ; McGraw-Hill Education [distributor].

Chicago-referens (17:e uppl.)

ebrary, Inc, Norbert F. Voelkel, och William MacNee. Chronic Obstructive Lung Diseases. 2nd ed. Hamilton, Ont. : Maidenhead: B C Decker ; McGraw-Hill Education [distributor], 2008.

MLA-referens (9:e uppl.)

ebrary, Inc, et al. Chronic Obstructive Lung Diseases. 2nd ed. B C Decker ; McGraw-Hill Education [distributor], 2008.