Citazione Stile APA (7a Edizione)

Semilla, L. V. (1971). Moves and strategies in a principle venture in secondary school mathematics. University Microfilms.

Citazione stile Chigago Style (17a edizione)

Semilla, Lilia V. Moves and Strategies in a Principle Venture in Secondary School Mathematics. Ann Arbor: University Microfilms, 1971.

Citatione MLA (9a ed.)

Semilla, Lilia V. Moves and Strategies in a Principle Venture in Secondary School Mathematics. University Microfilms, 1971.