(1893). County Medical Officers of Health and Private Practice.
استشهاد بنمط شيكاغوCounty Medical Officers of Health and Private Practice. 1893.
MLA استشهادCounty Medical Officers of Health and Private Practice. 1893.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.