(1977). Remedial education: Programmes and progress ; reader / edited and introduced by Paul Widlake for the National Association for Remedial Education from the journal Remedial Education.
Čikaški stil citiranja (17. izdanje)Remedial Education: Programmes and Progress ; Reader / Edited and Introduced by Paul Widlake for the National Association for Remedial Education from the Journal Remedial Education. 1977.
MLA način citiranja (9. izdanje)Remedial Education: Programmes and Progress ; Reader / Edited and Introduced by Paul Widlake for the National Association for Remedial Education from the Journal Remedial Education. 1977.
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