Gaya APA

Charner, K. et al (2007). The giant encyclopedia of math activities for children 3 to 6 : written by teachers for teachers . Beltsville: Gryphon House, Inc.

Gaya MLA

Charner, Kathy. et al. "The giant encyclopedia of math activities for children 3 to 6 : written by teachers for teachers". Beltsville: Gryphon House, Inc, 2007. Text.