Cita APA

Murray, W. D., & Grant, I. W. (1966). Effects of opiates in chronic bronchitis.

Chicago Style Citation

Murray, W D., i I W. Grant. Effects of Opiates in Chronic Bronchitis. 1966.

Cita MLA

Murray, W D., i I W. Grant. Effects of Opiates in Chronic Bronchitis. 1966.