Style de citation APA (7e éd.)
Harrison, M. (1995). Grammar spectrum 2. English rules and practice: Pre-intermadiate. With answers. Oxford University Press.
Style de citation Chicago (17e éd.)
Harrison, Mark. Grammar Spectrum 2. English Rules and Practice: Pre-intermadiate. With Answers. Oxford: Oxford University Press, 1995.
Style de citation MLA (9e éd.)
Harrison, Mark. Grammar Spectrum 2. English Rules and Practice: Pre-intermadiate. With Answers. Oxford University Press, 1995.
Attention : ces citations peuvent ne pas être correctes à 100%.