APA

Lucas j., . (1978). The 1930s : a challenge to orthodoxy. New York: Harvester Press.

Chicago

Lucas john, . 1978. The 1930s : a challenge to orthodoxy. New York: Harvester Press.

Harvard

Lucas j., . (1978). The 1930s : a challenge to orthodoxy. New York: Harvester Press.

MLA

Lucas john, . The 1930s : a challenge to orthodoxy. New York: Harvester Press. 1978.