National Institute of Adult Education (England and Wales). Adult Literacy and Basic Skills Unit. (1983). Developing communication skills: An ideas handbook for work with mentally handicapped adults. The Adult Literacy and Basic Skills Unit.
Citazione stile Chigago Style (17a edizione)National Institute of Adult Education (England and Wales). Adult Literacy and Basic Skills Unit. Developing Communication Skills: An Ideas Handbook for Work with Mentally Handicapped Adults. London: The Adult Literacy and Basic Skills Unit, 1983.
Citatione MLA (8a ed.)National Institute of Adult Education (England and Wales). Adult Literacy and Basic Skills Unit. Developing Communication Skills: An Ideas Handbook for Work with Mentally Handicapped Adults. The Adult Literacy and Basic Skills Unit, 1983.