Technically, yes (as it is the Australian release). But third party sellers on Amazon USA are selling it.
It was a great read although some of the characterizations suffer because the writer wants to have a broad gender debate (it's central to the plot). There is also a small thread of fantastical element that shows up near the end of what is essentially an excellent sci-fi horror story.
Here's a link to the amazon listing:
https://www.amazon.com/Girls-Complete-Collection-Joshua-Luna/dp/1607064669