APA (7th ed.) Citation

Butler, S., Searle, K. D., & Malan, P. C. (2023). A portfolio selection problem arising from real-estate investments. Orion, 39(2), 159. https://doi.org/10.5784/39-2-001

Chicago Style (17th ed.) Citation

Butler, S., K. D. Searle, and P. C. Malan. "A Portfolio Selection Problem Arising from Real-estate Investments." Orion 39, no. 2 (2023): 159. https://doi.org/10.5784/39-2-001.

MLA (9th ed.) Citation

Butler, S., et al. "A Portfolio Selection Problem Arising from Real-estate Investments." Orion, vol. 39, no. 2, 2023, p. 159, https://doi.org/10.5784/39-2-001.