General Report (Association for the Improvement of Geometrical Teaching). JSTOR.
استشهاد بنمط شيكاغوGeneral Report (Association for the Improvement of Geometrical Teaching). JSTOR.
MLA استشهادGeneral Report (Association for the Improvement of Geometrical Teaching). JSTOR.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.