Bible Verse "addresses"

I just wanted to share a quick idea about how to help kids understand the book, chapter, verse format of Bible verses. Our Kids Klub leader has been calling it the "address." Forr example where is "For God so loved the world that he gave his only begotten Son that whosoever believes in him should not perish but have eternal life." The address is John 3:16.  This helps the kids relate this to their street address, book is the same as the street and the numbers are the similar to their house number. I just think this is a great way to help them think that the location is just as important as the verse, plus I never remember where to find verses.