I have a table:

```
BookType    Version
A           2011
A           2012
A           2013
B           2011
B           2012
B           2013
B           2014
C           2011
C           2012
C           2014
D           2011
D           2012
D           2013
D           2014

```

And I want to select BookTypes which do not have a Version for each year between 2011 and 2014. So it would return:

```
A
C

```

How do I do this?