Lorand, A. (1912). Old age deferred: The causes of old age and its postponement by hygienic and therapeutic measures (3rd ed. / translated, with additions, by the author, from the 3rd German ed.). F.A. Davis Co..
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Lorand, Arnold. Old Age Deferred: The Causes of Old Age and Its Postponement by Hygienic and Therapeutic Measures. 3rd ed. / translated, with additions, by the author, from the 3rd German ed. Philadelphia: F.A. Davis Co., 1912.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Lorand, Arnold. Old Age Deferred: The Causes of Old Age and Its Postponement by Hygienic and Therapeutic Measures. 3rd ed. / translated, with additions, by the author, from the 3rd German ed. F.A. Davis Co., 1912.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.