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.
Lua i Stíl Chicago (17ú heag.)Smith, 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.
Lua MLA (8ú heag.)Smith, 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.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.