APA

Riddel J., . (1991). Workers of the World and Oppressed Peoples, Unite!. New York: Pathfinder.

Chicago

Riddel John, . 1991. Workers of the World and Oppressed Peoples, Unite!. New York: Pathfinder.

Harvard

Riddel J., . (1991). Workers of the World and Oppressed Peoples, Unite!. New York: Pathfinder.

MLA

Riddel John, . Workers of the World and Oppressed Peoples, Unite!. New York: Pathfinder. 1991.