First published in 1981. Routledge is an imprint of Taylor & Francis, an informa company.
- ISBN10 1481813153
- ISBN13 9781481813150
- Publish Date 22 December 2012 (first published 1 September 1967)
- Publish Status Active
- Imprint Createspace Independent Publishing Platform
- Format Paperback (US Trade)
- Pages 104
- Language English