APA

Roughead E. E., Gilbert A. L. & Harvey K. J. (19980811). Self-regulatory codes of conduct: are they effective in controlling pharmaceutical representatives' presentations to general medical practitioners?. : International journal of health services : planning, administration, evaluation.

Chicago

Roughead E E, Gilbert A L and Harvey K J. 19980811. Self-regulatory codes of conduct: are they effective in controlling pharmaceutical representatives' presentations to general medical practitioners?. : International journal of health services : planning, administration, evaluation.

Harvard

Roughead E. E., Gilbert A. L. and Harvey K. J. (19980811). Self-regulatory codes of conduct: are they effective in controlling pharmaceutical representatives' presentations to general medical practitioners?. : International journal of health services : planning, administration, evaluation.

MLA

Roughead E E, Gilbert A L and Harvey K J. Self-regulatory codes of conduct: are they effective in controlling pharmaceutical representatives' presentations to general medical practitioners?. : International journal of health services : planning, administration, evaluation. 19980811.