The monthly publication of the society beginning in 1942 is at the Library of Congress (LoC) in Washington DC. https://catalog.loc.gov/vwebv/search?searchArg=Pancretan+Union+in+America&searchCode=GKEY%5E*&searchType=0&recCount=25&s…
Once the LoC reopens, you would have to pre-order publications 1942-1971, because they are stored off site.
Under normal circumstances, Krētē : monthly publication of the Pancretan Association of America is served by staff in the Main Reading Room of the Library of Congress. Due to the current health crisis, all Library of Congress facilities are currently closed to the public. Information about how to monitor the Library's current operating status is available at https://www.loc.gov/about/pandemic-information/for-public/?loclr=hhub. You may also contact reading room staff through the Ask a Librarian service.
Dear Ms. Ranney,
Thank you for posting your request on History Hub!
In addition to the publications available at the Library of Congress, you may wish to contact the The Pancretan Archives.
We hope this is helpful. Best of luck with your research!