Correct author names for "Sharks" (assorted spellings of John D. Stevens)

[Debbie's Spurts (D.A.)]

Please change author name John D Stevens; Tony Pytzakowski to "John D. Stevens" then add Tony Pytzakowski as a second author on the book.

Looks like may be more "Sharks" editions to combine that say are by "John Stevens", "John D Stevens" and by " John D. Stevens" -- I'm not sure which is accurate (I just saw the odd combined author names profile - don't have book in hand).

I am sure author "John D Stevens" needs a period after middle initial.

I think these are all editions of the same work but just have different versions of author John:

[Emy]

Got them - checking whether all are valid editions now.

Done and found another lurking edition as well.