Primary Schools Research and Development Group. (1973). Education 3-13: The professional journal for primary education. Longman Group.
Cita Chicago Style (17a ed.)Primary Schools Research and Development Group. Education 3-13: The Professional Journal for Primary Education. Essex, Inglaterra: Longman Group, 1973.
Cita MLA (8a ed.)Primary Schools Research and Development Group. Education 3-13: The Professional Journal for Primary Education. Longman Group, 1973.
Precaución: Estas citas no son 100% exactas.