Citazione Stile APA (7a Edizione)

Valldeperas, N., & Berkeley, E. (1994). New project: Activity cards, games and ideas : for children between the ages of 3 & 7. Salvatella.

Citazione stile Chigago Style (17a edizione)

Valldeperas, Neus, e Elna Berkeley. New Project: Activity Cards, Games and Ideas : For Children Between the Ages of 3 & 7. Barcelona: Salvatella, 1994.

Citatione MLA (9a ed.)

Valldeperas, Neus, e Elna Berkeley. New Project: Activity Cards, Games and Ideas : For Children Between the Ages of 3 & 7. Salvatella, 1994.