"This manual aims to give a thorough knowledge of the basic features of the programming language logo, including recursion and list manipulation. It takes the reader through logo in a structured order and covers the main versions of logo which have been implemented on the BBC, RML, Apple II and Spectrum microcomputers. The manual is based on in-service courses for teachers given by the authors."
Teaching Calculus(Updated) by Hugh Neill, HilaryShuard Paperback, 280 Pages, Published 1985 by Blackie & Son ISBN-13: 978-0-216-91764-4, ISBN: 0-216-91764-6