APA (7th ed.) Citation

Hingham, Greenwood, & Hardesty 1939. (1998). Russian aviation an air power in the twentieth century. Frank Cass.

Chicago Style (17th ed.) Citation

Hingham, Greenwood, and Hardesty 1939. Russian Aviation an Air Power in the Twentieth Century. London: Frank Cass, 1998.

MLA (8th ed.) Citation

Hingham, et al. Russian Aviation an Air Power in the Twentieth Century. Frank Cass, 1998.