You don't say what version of BIND you're using.
If you go to the Internet Systems Consortium's (ISC - makers of BIND) Administrator's Reference Manual (ARM) you can find examples. Below is a link the HTML ARM for BIND 9.4:
Once you go there do a search for "Split DNS" and you'll see examples in that section.
The ARMs are good resources and ISC has them for the versions 9.4 through latest 9.7.x. The view stuff is pretty much the same in all of BIND 9.x.