APA

Hughes J., Pride N., . (2003). Lung function tests. London: W.B.Saunders.

Chicago

Hughes J.M.B, Pride N.B, . 2003. Lung function tests. London: W.B.Saunders.

Harvard

Hughes J., Pride N., . (2003). Lung function tests. London: W.B.Saunders.

MLA

Hughes J.M.B, Pride N.B, . Lung function tests. London: W.B.Saunders. 2003.