Cita APA

Cruickshank, J. W., & Cruickshank, A. M. (1907). The umbrian cities of Italy. Boston: L C Page.

Citación estilo Chicago

Cruickshank, J. W., y A. M. Cruickshank. The Umbrian Cities of Italy. Boston: L C Page, 1907.

Cita MLA

Cruickshank, J. W., y A. M. Cruickshank. The Umbrian Cities of Italy. Boston: L C Page, 1907.