Which is correct for a subtitle?
So I about to order the shutterfly book I made with the code from the bargain alert board and my DH and I have a little disagreement about the cover... Currently is says our DD's name and the phrase "January 2006- January 2007" under it and the just the dates appear on the spine. My DH says I need a comma between the month and year.?. I have looked all over the web and only found the use of the comma when a date (not just the month are used). But I was a math major in college for a reason --I can't spell and never remember grammar, punctuation rules to save my life. Give me a calculus proof anyday! So who is right?