Spurgeon, D. (2004). Canadian RCTs to have new registration rules. BMJ Publishing Group Ltd.
استشهاد بنمط شيكاغوSpurgeon, David. Canadian RCTs to Have New Registration Rules. BMJ Publishing Group Ltd, 2004.
MLA استشهادSpurgeon, David. Canadian RCTs to Have New Registration Rules. BMJ Publishing Group Ltd, 2004.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.