WAI, F. C. (1975). Limit Analysis And Soil Plasticity. Elsevier Scientific, corp.
Lua i Stíl Chicago (17ú heag.)WAI, Fah Chen. Limit Analysis And Soil Plasticity. Elsevier Scientific, corp, 1975.
Lua MLA (8ú heag.)WAI, Fah Chen. Limit Analysis And Soil Plasticity. Elsevier Scientific, corp, 1975.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.