APA Format
Nixon, Richard. (1990).
Leaders / Richard Nixon ; with a new introduction by President Nixon
. New York :: A Touchstone Book,.
MLA Format
Nixon, Richard.
Leaders / Richard Nixon ; with a new introduction by President Nixon
. New York :: A Touchstone Book,, 1990
Chicago Format
Nixon, Richard. Leaders / Richard Nixon ; with a new introduction by President Nixon. New York :: A Touchstone Book,, 1990.