Usher, S. J. (1938). THE ETIOLOGY OF CHOREA: ITS RELATION TO RHEUMATIC FEVER AND HEART DISEASE : (An Analysis of 105 Cases).
استشهاد بنمط شيكاغوUsher, Saul J. THE ETIOLOGY OF CHOREA: ITS RELATION TO RHEUMATIC FEVER AND HEART DISEASE : (An Analysis of 105 Cases). 1938.
MLA استشهادUsher, Saul J. THE ETIOLOGY OF CHOREA: ITS RELATION TO RHEUMATIC FEVER AND HEART DISEASE : (An Analysis of 105 Cases). 1938.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.