Cita APA

Roper, E., Schäfler, K., & Auskerin, M. (1940). Sepher HaShanah: Gwrych Castle year book 1939/40. Gwrych Castle.

Citación estilo Chicago

Roper, Erich, Karl Schäfler, y Mary Auskerin. Sepher HaShanah: Gwrych Castle Year Book 1939/40. Abergele: Gwrych Castle, 1940.

Cita MLA

Roper, Erich, et al. Sepher HaShanah: Gwrych Castle Year Book 1939/40. Gwrych Castle, 1940.