Tarr, F. C., & Centeno, A. (1937). Shorter Spanish review grammar and composition. Crofts.
Lua i Stíl Chicago (17ú heag.)Tarr, Frederick Courtney, agus Augusto Centeno. Shorter Spanish Review Grammar and Composition. New York: Crofts, 1937.
Lua MLA (9ú heag.)Tarr, Frederick Courtney, agus Augusto Centeno. Shorter Spanish Review Grammar and Composition. Crofts, 1937.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.