How the US helped in the nationalization of Iranian oil

A person who wishes to remain anonymous sent me this:  "Another book that came into my hands today, Iran, Israel, and the United States: Regime Security vs. Political Legitimacy by one Jalil Roshandel and published by Praeger, a frequent publisher of US and Israeli military themed books, contained this chestnut: "The contentious relationship [between the US and Iran] began before the shah [sic.] took the throne when the United States and the British organized and assisted in nationalizing Iran's oil industry." " (p. 8)