MLA

Joad, C. E. M. Decadence : a Philosophical Inquiry. London: Faber and Faber, 1948.

APA

Joad, C. E. M. (1948). Decadence : a philosophical inquiry. London: Faber and Faber.

Chicago

Joad, C. E. M. Decadence: A Philosophical Inquiry. London: Faber and Faber, 1948.