APA (7th ed.) Citation

Johnstone, L., Larkin, J., & Spaull, D. (2018). Helen Cottee (1958–2018). Psychologist, 7.

Chicago Style (17th ed.) Citation

Johnstone, Lucy, Jan Larkin, and Debbie Spaull. "Helen Cottee (1958–2018)." Psychologist 2018: 7.

MLA (9th ed.) Citation

Johnstone, Lucy, et al. "Helen Cottee (1958–2018)." Psychologist, 2018, p. 7.