APA
Press Syndicate of the University of Cambridge, . (1993). Teacher´s Book 1. New Horizons: Science 5-16. Cambridge: .
Chicago
Press Syndicate of the University of Cambridge, . 1993. Teacher´s Book 1. New Horizons: Science 5-16. Cambridge: .
Harvard
Press Syndicate of the University of Cambridge, . (1993). Teacher´s Book 1. New Horizons: Science 5-16. Cambridge: .
MLA
Press Syndicate of the University of Cambridge, . Teacher´s Book 1. New Horizons: Science 5-16. Cambridge: . 1993.
