APA

Schon D. A., . (1973). Beyond the Stable State. New York: 1973.

Chicago

Schon Donald A, . 1973. Beyond the Stable State. New York: 1973.

Harvard

Schon D. A., . (1973). Beyond the Stable State. New York: 1973.

MLA

Schon Donald A, . Beyond the Stable State. New York: 1973. 1973.