How do you create a standard object say 'Contact' record of a particular RecordType say 'InternalContact' from a VF page? When I create the contact using standard controller, the default Contact record gets created not the internalContact recordtype. How do we do this cast?

How do you create a standard object say 'Contact' record of a particular RecordType say 'InternalContact' from a VF page? When I create the contact using standard controller, the default Contact record gets created not the internalContact recordtype. How do we do this cast?