Citazione Stile APA (7a Edizione)

Lovell, K. (1971). The growth of understanding in mathematics: Kindergarten through grade three. Holt.

Citazione stile Chigago Style (17a edizione)

Lovell, K. The Growth of Understanding in Mathematics: Kindergarten Through Grade Three. New York: Holt, 1971.

Citatione MLA (9a ed.)

Lovell, K. The Growth of Understanding in Mathematics: Kindergarten Through Grade Three. Holt, 1971.