Share '1972 National Geographic'

Hello, fellow members of the Collectors Corner! As some of you know (if you've read my About Me section) have acquired NGM year of 1972 (really good price at Goodwill! Like a dollar apiece!) but the person who donated the 1972 NGM year either didn't have the whole year or they really like some of them.  But I walked away with like 3 or 4. But anyways I'm trying to get the missing months. If anyo…