Boyd, J. E. (1911). Strength of materials. McGraw-Hill.
Lua i Stíl Chicago (17ú heag.)Boyd, James E. Strength of Materials. New York: McGraw-Hill, 1911.
Lua MLA (8ú heag.)Boyd, James E. Strength of Materials. McGraw-Hill, 1911.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.