Allen, J. P. B. 1., & Widdowson, H. G. 1. (1974). English in physical science: Teacher's edition. London: Oxford University Press.
Chicago Style CitationAllen, J. P. B. 1936-, and H. G. 1935- Widdowson. English in Physical Science: Teacher's Edition. London: Oxford University Press, 1974.
MLA CitationAllen, J. P. B. 1936-, and H. G. 1935- Widdowson. English in Physical Science: Teacher's Edition. London: Oxford University Press, 1974.
Warning: These citations may not always be 100% accurate.