ISBN 1876373571 is for revised version of the original sock booklet #38
The book can be added as an additional source if anyone has the other cover. The content is apparently somewhat different.
7 Patterns (in original book): Men’s Cable Socks Warmth for Infants Junior Gentleman Toddler’s Favourites Golfer’s Special For The Schoolboy Ladies’ Ankle Socks Man About Town The Outdoor Man