Cita APA

Revell, J., Phillips, D., & Sheerin, S. (1991). Signature intermediate: Workbook. NelSon, U.K: [s.n].

Citación estilo Chicago

Revell, Jane, Diane Phillips, and Susan Sheerin. Signature Intermediate: Workbook. NelSon, U.K: [s.n], 1991.

Cita MLA

Revell, Jane, Diane Phillips, and Susan Sheerin. Signature Intermediate: Workbook. NelSon, U.K: [s.n], 1991.

Precaución: Estas citas no son 100% exactas.