Cita APA

Schofield, J., & Frendo, E. (2006). Double dealing: [upper intermediate : teacher's book] business english course. Summertown: Summertown Publishing.

Citación estilo Chicago

Schofield, James, and Evan Frendo. Double Dealing: [upper Intermediate : Teacher's Book] Business English Course. Summertown: Summertown Publishing, 2006.

Cita MLA

Schofield, James, and Evan Frendo. Double Dealing: [upper Intermediate : Teacher's Book] Business English Course. Summertown: Summertown Publishing, 2006.