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[Linked Image from m.media-amazon.com]

Here's the first volume online for your reading pleasure, , in its entirety, cover-dated March 1979. Of the 7 HEMBECK books published. (first published by Eclipse)
https://readallcomics.com/hembeck-the-best-of-dateline-1979/

Then this first issue was reprinted by Fantaco in Dec 1980, followed by 6 more issues of silliness, for a total of 7 issues from Fantaco, from 1980-1983.
https://www.mycomicshop.com/search?TID=195361