These are 2 Cumulative Supplements to the 2013 edition of the White Book in very good condition. There are no marks or writing in either book - they clean and unused. The supplements are: 1. May 2013 - Cumulative Special Supplement to the 2013 Edition 2. July 2013 - Cumulative First Supplement to the 2013 Edition Please ask if you have any questions and thanks for.