Dobson, R. (2005). Study of doctors' smoking habits shows links to 11 types of cancer. BMJ.
Chicago Style citaatDobson, Roger. "Study of Doctors' Smoking Habits Shows Links to 11 Types of Cancer." BMJ 2005.
MLA citatieDobson, Roger. "Study of Doctors' Smoking Habits Shows Links to 11 Types of Cancer." BMJ 2005.
Let op: Deze citaties zijn niet altijd 100% accuraat.