Assuming you want local authentication and the public IP of the people you want to grant access is 75.50.95.72-
aaa authentication http console LOCAL
http server enable
http 75.50.95.72 255.255.255.248 outside
Assuming that SSH is already configured and working-
ssh 75.50.95.73 255.255.255.255 outside
I think that should do it for you. Hope it helps.