What has the author John A Scowcroft written?

There is no author named John A Scowcroft. You may be thinking of Brent Scowcroft, who was the National Security Advisor to Presidents Gerald Ford and George H. W. Bush.

Brent Scowcroft has authored several books, including:

* "A Time to Lead: America in the World Since 9/11" (2007)

* "At the Center of the Storm: My Years as National Security Advisor" (1998)

* "The Autobiography of Brent Scowcroft" (2013)

* "Farewell to Berlin: A Cold War Memoir" (2014)

Please clarify if you meant a different author.