Cita APA (7a ed.)

Phillips, T., & Phillips, A. (1995). Business opportunities: Teacher's book. Oxford University.

Cita Chicago Style (17a ed.)

Phillips, Terry, y Anna Phillips. Business Opportunities: Teacher's Book. Oxford: Oxford University, 1995.

Cita MLA (8a ed.)

Phillips, Terry, y Anna Phillips. Business Opportunities: Teacher's Book. Oxford University, 1995.