Παραπομπή APA

Lyttleton, R. A. (1961). Modern Universe. Hodder and Stoughton.

Παραπομπή Chicago Style

Lyttleton, Raymond A. Modern Universe. London: Hodder and Stoughton, 1961.

Παραπομπή MLA

Lyttleton, Raymond A. Modern Universe. Hodder and Stoughton, 1961.