Jones, H. M., & Stern, M. R. (1975). The twentieth century: With a general introd. by the ed. and a prefatory essay by Howard Mumford Jones. Penguin Books.
Chicago-Zitierstil (17. Ausg.)Jones, Howard Mumford, und Milton R. Stern. The Twentieth Century: With a General Introd. by the Ed. and a Prefatory Essay by Howard Mumford Jones. Harmondsworth: Penguin Books, 1975.
MLA-Zitierstil (8. Ausg.)Jones, Howard Mumford, und Milton R. Stern. The Twentieth Century: With a General Introd. by the Ed. and a Prefatory Essay by Howard Mumford Jones. Penguin Books, 1975.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.