Gaya APA

Neustadt, R, E, &, E, R. (1986). Thinking in time, the uses of history for dicision-makers. . New York dsl: Free Press dsl.

Gaya MLA

Neustadt, Richard, E., &, Ernest, R.May.. "Thinking in time, the uses of history for dicision-makers. ". New York dsl: Free Press dsl, 1986. Buku.