And the The Bride of Mr. Mxyzptlk is a pre Crisis story, issue# 291 of Action Comics, cover price 12 cents.
Here’s a link:
http://3.bp.blogspot.com/-7pdyKhOJ790/TaN-TGDdRPI/AAAAAAAADH8/FYdE06Pg_HA/s1600/Action%2BComics%2B291-14.jpg
Though that does not have to be followed, of course.
Edit:
Just...