Smith, W. G. (1900). George Allen, LL.D.: Read before the Society of the Alumni of the University of Pennsylvania at Houston Hall, June 13, 1900. Philadelphia.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিSmith, Walter George. George Allen, LL.D.: Read Before the Society of the Alumni of the University of Pennsylvania at Houston Hall, June 13, 1900. Philadelphia, 1900.
M.L.A (8 ম সংস্করণ) উদ্ধৃতিSmith, Walter George. George Allen, LL.D.: Read Before the Society of the Alumni of the University of Pennsylvania at Houston Hall, June 13, 1900. Philadelphia, 1900.
সতর্কবাণী: সাইটেশন সবসময় 100% নির্ভুল হতে পারে না.