Green Lantern Vol.2 #10
Dr. Jason Blanding shrinks his entire family to a sub-atomic level. Once there Green Lantern's ring energy begins to affect the sub-atomic world and Green Lantern has to travel there to rescue the Blanding family. The Origin of Green Lantern's Oath!, script by John Broome, pencils by Gil Kane, inks by Murphy Anderson; Green Lantern tells Pieface the story of his first three cases, on which his oath is based.
First Printing: Jan 1962
Writers: John Broome
Art: Gil Kane and Joe Giella
Cover: Gil Kane and Murphy Anderson