APA (7th ed.) Citation

Anderson, S. D., Nuttall, C. E., & Shepherd, J. P. (1972). Contrast of past continuous and past simple (1. publ., 2. impr.). Longman.

Chicago Style (17th ed.) Citation

Anderson, S. D., C. E. Nuttall, and J. P. Shepherd. Contrast of Past Continuous and Past Simple. 1. publ., 2. impr. London: Longman, 1972.

MLA (9th ed.) Citation

Anderson, S. D., et al. Contrast of Past Continuous and Past Simple. 1. publ., 2. impr. Longman, 1972.