Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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