Cita APA (7a ed.)

Willhardt, M., & Parker, A. M. (2000). Who's who in twentieth century world poetry. Routledge.

Cita Chicago Style (17a ed.)

Willhardt, Mark, y Alan Michael Parker. Who's Who in Twentieth Century World Poetry. London: Routledge, 2000.

Cita MLA (8a ed.)

Willhardt, Mark, y Alan Michael Parker. Who's Who in Twentieth Century World Poetry. Routledge, 2000.