Cita APA (7a ed.)

Hamlyn, D. W. (1980). Schopenhauer. Routledge & Kegan Paul.

Cita Chicago Style (17a ed.)

Hamlyn, D. W. Schopenhauer. London [etc.]: Routledge & Kegan Paul, 1980.

Cita MLA (9a ed.)

Hamlyn, D. W. Schopenhauer. Routledge & Kegan Paul, 1980.