APA

Bohlen C.E, . (1973). Witness to history 1929-1969. N.J: Norton.

Chicago

Bohlen C.E, . 1973. Witness to history 1929-1969. N.J: Norton.

Harvard

Bohlen C.E, . (1973). Witness to history 1929-1969. N.J: Norton.

MLA

Bohlen C.E, . Witness to history 1929-1969. N.J: Norton. 1973.