APA (7th ed.) Citation

O'Neill, R., & Kingsbury, R. (1974). Kernel lessons plus: A post intermediate cource : tests : student's book. Longman.

Chicago Style (17th ed.) Citation

O'Neill, Robert, and Roy Kingsbury. Kernel Lessons Plus: A Post Intermediate Cource : Tests : Student's Book. Harlow: Longman, 1974.

MLA (9th ed.) Citation

O'Neill, Robert, and Roy Kingsbury. Kernel Lessons Plus: A Post Intermediate Cource : Tests : Student's Book. Longman, 1974.