Smith, A. L. (1924). Football offense. Flint-Douglas Printing Co..
Lua i Stíl Chicago (17ú heag.)Smith, Andrew L. Football Offense. Menomonie, Wis.: Flint-Douglas Printing Co., 1924.
Lua MLA (8ú heag.)Smith, Andrew L. Football Offense. Flint-Douglas Printing Co., 1924.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.