Cita APA (7a ed.)

Allen, J. P. B., & Widdowson, H. G. (1974). English in physical science: Teacher's edition. Oxford University Press.

Cita Chicago Style (17a ed.)

Allen, J. P. B., y H. G. Widdowson. English in Physical Science: Teacher's Edition. London: Oxford University Press, 1974.

Cita MLA (9a ed.)

Allen, J. P. B., y H. G. Widdowson. English in Physical Science: Teacher's Edition. Oxford University Press, 1974.