A quick glance at wikipedia suggests this isn't correct:
In the 1940s, upper-class students were the first to oppose Peronist workers, with the slogan: "No to espadrille dictatorship" (No a la dictadura de las alpargatas).
The Roman Catholic Church's Argentine leaders, whose support of Perón's government had been steadily waning since the advent of the Eva Perón Foundation, were now open antagonists of the man they called "the Dictator." Though much of Argentina's media had, since 1950, been either controlled or monitored by the administration, lurid pieces on "the Dictator's" ongoing relationship with an underage girl, something Perón never denied, filled the gossip pages.[2]
I doubt wikipedia's sources, but I can't read it cause the source is a californian book, and there is no link to read it and I don't own the book.
The guy was autoritarian, but he wasn't a dictator, and certainly not by wikipedia's own definition: http://en.wikipedia.org/wiki/Dictator
In the 1940s, upper-class students were the first to oppose Peronist workers, with the slogan: "No to espadrille dictatorship" (No a la dictadura de las alpargatas).
The Roman Catholic Church's Argentine leaders, whose support of Perón's government had been steadily waning since the advent of the Eva Perón Foundation, were now open antagonists of the man they called "the Dictator." Though much of Argentina's media had, since 1950, been either controlled or monitored by the administration, lurid pieces on "the Dictator's" ongoing relationship with an underage girl, something Perón never denied, filled the gossip pages.[2]
http://en.wikipedia.org/wiki/Juan_Peron
Not saying he was or wasn't a dictator (I have no opinion on the matter), but it looks like at least some of the opposition does describe him as such.
Incidentally, a dictator can be elected democratically.