Notes:
WARNING: There are numerous forgeries of the first printing out there! The bogus copies are easy to spot because the interior pages were printed on stark white paper, not the off-white newsprint of the originals.
Another forgery trick is to take legitimate copies of the second or third printings and bleach out the printing notation text to make them appear to be first printings. Second and third printings are labeled as such on the top left corner of the inside front cover directly beneath the "Special thanks to Quentin Eastman" text (there is no printing notation on first printings).
Also of note: the inside back cover of first printings features an ad for the two "Gobbledygook" zines. The inside back cover of second and third printings features an ad for TMNT t-shirt iron-ons. Also of note is that the address for Mirage Studios changed from Dover, NH to Sharon, CT on the indicia of the third printings.