APA

Higgins Pearce A, Brierly J L, . (1931). The British year book of international law - 1931. London: The Royal Institute of International Affairs.

Chicago

Higgins Pearce A, Brierly J L, . 1931. The British year book of international law - 1931. London: The Royal Institute of International Affairs.

Harvard

Higgins Pearce A, Brierly J L, . (1931). The British year book of international law - 1931. London: The Royal Institute of International Affairs.

MLA

Higgins Pearce A, Brierly J L, . The British year book of international law - 1931. London: The Royal Institute of International Affairs. 1931.