APA način citiranja (7. izdanje)

Ashbrook, P. (2003). Science is simple: Over 250 activities for preschoolers. Gryphon House.

Čikaški stil citiranja (17. izdanje)

Ashbrook, Peggy. Science Is Simple: Over 250 Activities for Preschoolers. Beltsville, Md: Gryphon House, 2003.

MLA način citiranja (9. izdanje)

Ashbrook, Peggy. Science Is Simple: Over 250 Activities for Preschoolers. Gryphon House, 2003.