MySource:Penelope Blake/World War I Selective Service System Draft Registration Cards, 1917-1918. United States, Selective Service System, Washington D.C., U.S.A. (online). Available from http:/www.ancestry.com :

Watchers
MySource World War I Selective Service System Draft Registration Cards, 1917-1918. United States, Selective Service System, Washington D.C., U.S.A. (online). Available from http:/www.ancestry.com :
Abreviation WWI Draft Registration Card (Online)
Coverage
Year range -
Citation
World War I Selective Service System Draft Registration Cards, 1917-1918. United States, Selective Service System, Washington D.C., U.S.A. (online). Available from http:/www.ancestry.com :.
Repository
Name Ancestry.Com

Short version of source: World War I Selective Service System Draft Registration Cards, 1917-1918 [online]

Bibliography version of source: World War I Selective Service System Draft Registration Cards, 1917-1918 [online]

URL: http://www.ancestry.co.uk