Παραπομπή σε μορφή APA (7η εκδ.)

(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.

Παραπομπή σε μορφή Chicago (17η εκδ.)

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.

Παραπομπή σε μορφή MLA (9th εκδ.)

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.