All images in this pack are owned by me. You cannot reuse any of them without citing me as creator. If the texture is owned by Nintendo or Mojang and you want to use it without citing me as where you got it from, then take it from something other than this pack, and cite the correct creator.

Mario, the Mario characters, the Mario textures, the Mario sounds, and the Mario music are owned by Nintendo.
mariowiki.com was helpful for finding the images for Mario terrain.
Other Mario Texture Packs provided inspiration.
Mojang owns Minecraft, and some textures were a modification of theirs, or theirs without change.