Cita APA (7a ed.)

Langridge, D. W. (1976). Classification and indexing in the humanities. Butterworths.

Cita Chicago Style (17a ed.)

Langridge, Derek Wilton. Classification and Indexing in the Humanities. London: Butterworths, 1976.

Cita MLA (9a ed.)

Langridge, Derek Wilton. Classification and Indexing in the Humanities. Butterworths, 1976.