Primary Schools Research and Development Group. (1973). Education 3-13: The professional journal for primary education. Longman Group.
Čikaški stil citiranja (17. izdanje)Primary Schools Research and Development Group. Education 3-13: The Professional Journal for Primary Education. Essex, Inglaterra: Longman Group, 1973.
MLA način citiranja (8. izdanje)Primary Schools Research and Development Group. Education 3-13: The Professional Journal for Primary Education. Longman Group, 1973.
Upozorenje: Ovi citati možda nisu uvijek 100% točni.