Getting data from two tables into one

Dear Experts,
I have two tables in one database both are same the only difference is Table 1 is 2012 data (By Date Jan to Dec) and Table 2 is 2013 Data (By Date from Jan 1 till date).
Field names & Data types are:
Field1/Text
Field2/Number
Field3/Date
Field4/Number
Field5/Text
Field6/Text
Field7 to Field 18 Number
Result I am trying to achieve is Get 2013 Data Between 2 dates(Lets say 01-May to 12-May) and get last years data (Field 7 to 18) next to it. My result should look something like
Field1/Text of 2013 Table
Field2/Number of 2013 Table
Field3/Date of 2013 Table
Field4/Number of 2013 Table
Field5/Text of 2013 Table
Field6/Text of 2013 Table
Field7 to Field 18 Number of 2013 Table
&
Field7 to Field 18 Number of 2012 Table
Best Regards/VKS