Cita APA (7a ed.)

Schofield, J. (2005). Double dealing: Pre-intermediate : teacher's book : business english course. Summertown Publishing.

Cita Chicago Style (17a ed.)

Schofield, James. Double Dealing: Pre-intermediate : Teacher's Book : Business English Course. Summertown: Summertown Publishing, 2005.

Cita MLA (9a ed.)

Schofield, James. Double Dealing: Pre-intermediate : Teacher's Book : Business English Course. Summertown Publishing, 2005.