Mate I struggled with this one too. I basically learnt the "rough" where abouts to look. You do have to memorise the locations to some extent as it will save on some time in the exam. I knew both the AIP and CAO's pretty well but had to learn the where abouts of a lot of stuff in the CAR's.
It also pays to understand words and phrases they use like the old classic "not withstanding" etc etc
The last piece of advice is to keep reading!! Once you think you have found the reference continue to read the rest of the paragraph/page or whatever. The answer to a lot of questions lies way toward the end!
Goodluck
Rocket