APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

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

MLA (9th ed.) Citation

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

Warning: These citations may not always be 100% accurate.