Here are some important web sites if you need more information regarding the AKC WDS Scorebook:
http://www.akc.org/pdfs/WDS_Scorebook.pdf

For more info on the AKC Working Dog Sport, please go to this web site: http://www.akc.org/events/working_dog_sport/index.cfm

Please visit the following site for clarification of recognized titles from original score books issued by the following organizations: SV, GSDCA-WDA, DVG, USCA, GSSC:  
http://www.akc.org/events/working_dog_sport/special_notices.cfm