Citace podle APA (7th ed.)

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

Citace podle Chicago (17th ed.)

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

Citace podle MLA (9th ed.)

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

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