APA (7th ed.) Citation

O'Neill, R., Kingsbury, R., & Yeadon, T. (1970). Kernel lessons intermediate: Teacher's book. Longman.

Chicago Style (17th ed.) Citation

O'Neill, Robert, Roy Kingsbury, and Tony Yeadon. Kernel Lessons Intermediate: Teacher's Book. London: Longman, 1970.

MLA (9th ed.) Citation

O'Neill, Robert, et al. Kernel Lessons Intermediate: Teacher's Book. Longman, 1970.