Ryder, G. (1986). Strength Of Materials G.h Ryder. Macmillan.
Lua i Stíl Chicago (17ú heag.)Ryder, G.H. Strength Of Materials G.h Ryder. Macmillan, 1986.
Lua MLA (8ú heag.)Ryder, G.H. Strength Of Materials G.h Ryder. Macmillan, 1986.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.