APA (7th ed.) Citation
Campbell, J. A. (1982). Mulptiple choices O level. Celtic Revision Aids.
Chicago Style (17th ed.) Citation
Campbell, J. A. Mulptiple Choices O Level. London: Celtic Revision Aids, 1982.
MLA (9th ed.) Citation
Campbell, J. A. Mulptiple Choices O Level. Celtic Revision Aids, 1982.
Warning: These citations may not always be 100% accurate.