Strong National Museum of Play & Strong (History Museum). American journal of play. University of Illinois.
Citazione stile Chigago Style (17a edizione)Strong National Museum of Play e Strong (History Museum). American Journal of Play. Champaign, IL: University of Illinois.
Citatione MLA (9a ed.)Strong National Museum of Play e Strong (History Museum). American Journal of Play. University of Illinois.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.