ISBN-13: 9781032060002 / Angielski / Twarda / 2021 / 206 str.
ISBN-13: 9781032060002 / Angielski / Twarda / 2021 / 206 str.
The lack of good statistical information had been a major factor in the poor planning of services for the mentally handicapped in the late 1960s. The principal object of this book, first published in 1972, was to provide an accurate factual basis for the planning of future services.