Coletta, A. J., & Coletta, K. (1986). Year 'round activities for two-year-old children. Center for Applied Research in Education.
Chicago-referens (17:e uppl.)Coletta, Anthony J., och Kathleen Coletta. Year 'Round Activities for Two-year-old Children. West Nyack, N.Y: Center for Applied Research in Education, 1986.
MLA-referens (9:e uppl.)Coletta, Anthony J., och Kathleen Coletta. Year 'Round Activities for Two-year-old Children. Center for Applied Research in Education, 1986.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.