Style de citation APA (7e éd.)
Allen, J., & Widdowson, H. (1974). English in Focus. English in Physical Science (Teacher's Edition.). Oxford University Press.
Style de citation Chicago (17e éd.)
Allen, J.P.B, et H.G Widdowson. English in Focus. English in Physical Science. Teacher's Edition. Oxford: Oxford University Press, 1974.
Style de citation MLA (9e éd.)
Allen, J.P.B, et H.G Widdowson. English in Focus. English in Physical Science. Teacher's Edition. Oxford University Press, 1974.
Attention : ces citations peuvent ne pas être correctes à 100%.