APA (7e ed.) Bronvermelding

Athey, C. (1990). Extending thought in young children: A parent-teacher partnership. PCP/Sage Publications.

Chicago (17e ed.) Bronvermelding

Athey, Chris. Extending Thought in Young Children: A Parent-teacher Partnership. Thousand Oaks, CA: PCP/Sage Publications, 1990.

MLA (8e ed.) Bronvermelding

Athey, Chris. Extending Thought in Young Children: A Parent-teacher Partnership. PCP/Sage Publications, 1990.