APA

Friedmann W., . (1964). The changing structure of international law. London: Stevens & Sons.

Chicago

Friedmann Wolfgang, . 1964. The changing structure of international law. London: Stevens & Sons.

Harvard

Friedmann W., . (1964). The changing structure of international law. London: Stevens & Sons.

MLA

Friedmann Wolfgang, . The changing structure of international law. London: Stevens & Sons. 1964.