APA引文

Alexander, W. (2009). American Heart Association 2008 Scientific Sessions United European Gastroenterology Week American College of Rheumatology Scientific Meeting. MediMedia USA, Inc.

Citação norma Chicago

Alexander, Walter. American Heart Association 2008 Scientific Sessions United European Gastroenterology Week American College of Rheumatology Scientific Meeting. MediMedia USA, Inc, 2009.

MLA引文

Alexander, Walter. American Heart Association 2008 Scientific Sessions United European Gastroenterology Week American College of Rheumatology Scientific Meeting. MediMedia USA, Inc, 2009.

警告：這些引文格式不一定是100％准確.