Wonder Woman's final scene in CRISIS #12, in which it was revealed that the event that appeared to had killed her a few pages earlier had actually regressed her backward in time: "From woman... to girl... to infant... to her original state of creation (the clay of Paradise Island)."
The cover of WONDER WOMAN #129, an "impossible tale" of Wonder Woman, Wonder Girl (Wonder Woman as a teen) and Wonder Tot (Wonder Woman as an infant), working together to save their mother Queen Hippolyta from falling within an active volcano.
I don't believe it was mentioned that Wonder Woman's final appearence in CRISIS #12 was an homage to the silver age "Impossible tales" featuring Wonder Woman, Wonder Girl, and Wonder Tot, who were all the same person at different ages, teaming up to go on adventures together...