Semilla, L. V. Moves and strategies in a principle venture in secondary school mathematics.
Lua i Stíl Chicago (17ú heag.)Semilla, Lilia V. Moves and Strategies in a Principle Venture in Secondary School Mathematics. Illinois: University of Illinois, 1971.
Lua MLA (9ú heag.)Semilla, Lilia V. Moves and Strategies in a Principle Venture in Secondary School Mathematics.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.