Gold  Key © August  1973, Hanna-Barbera Scooby-Doo...Mystery Comics #20.  The story is "The  Fiery Hoo-Doo". 

With works by: Pencils: Dan Spiegle    Inks: Dan Spiegle

This book appears in (59 f) with the expected nics, tics, wear and tear. Thanks for looking.     xxxx-xxxx-59