Comstock, D. F. (1906). Experimental investigation of the effect of permanent magnetism in iron on the permeability for very small forces. Printed at the University Press.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Comstock, Daniel F. Experimental Investigation of the Effect of Permanent Magnetism in Iron on the Permeability for Very Small Forces. Cambridge [Eng.]: Printed at the University Press, 1906.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Comstock, Daniel F. Experimental Investigation of the Effect of Permanent Magnetism in Iron on the Permeability for Very Small Forces. Printed at the University Press, 1906.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.