Παραπομπή APA

Ogilvie, A. (1973). Ten-year prospective study of chronic bronchitis in the north-east of England.

Παραπομπή Chicago Style

Ogilvie, Ag. Ten-year Prospective Study of Chronic Bronchitis in the North-east of England. 1973.

Παραπομπή MLA

Ogilvie, Ag. Ten-year Prospective Study of Chronic Bronchitis in the North-east of England. 1973.