Ferrancullo, F. A. (1978). Types of questions asked by elementary school children about mathematics.
Cita Chicago (17th ed.)Ferrancullo, Felixberto A. Types of Questions Asked by Elementary School Children About Mathematics. 1978.
Cita MLA (9th ed.)Ferrancullo, Felixberto A. Types of Questions Asked by Elementary School Children About Mathematics. 1978.
Atenció: Aquestes cites poden no estar 100% correctes.