Ferrancullo, F. A. Types of questions asked by elementary school children about mathematics.
Цитирование в стиле Чикаго (17-е изд.)Ferrancullo, Felixberto A. Types of Questions Asked by Elementary School Children About Mathematics. Quezon City, 1978.
Цитирование MLA (9-е изд.)Ferrancullo, Felixberto A. Types of Questions Asked by Elementary School Children About Mathematics.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.