- Paperback: 48 pages
- Publisher: Penguin Books Ltd; Revised edition edition (22 Feb 1969)
- Language English
- ISBN-10: 0140209735
- ISBN-13: 978-0140209730
- Product Dimensions: 19.6 x 13 x 1 cm
- Amazon Bestsellers Rank: 3,541,641 in Books (See Top 100 in Books)