APA (7th ed.) Citation

Bird, J. O., & May, A. J. C. (1981). Mathematics for electrical technicians, level 4 and 5. Longman.

Chicago Style (17th ed.) Citation

Bird, J. O., and A. J. C. May. Mathematics for Electrical Technicians, Level 4 and 5. London: Longman, 1981.

MLA (9th ed.) Citation

Bird, J. O., and A. J. C. May. Mathematics for Electrical Technicians, Level 4 and 5. Longman, 1981.