APA (7th ed.) Citation

Blog, B., van der Hoek, G., Rinnooy Kan, A. H. G., & Timmer, G. T. (1983). The Optimal Selection of Small Portfolios. Management science, 29(7), 792-798. https://doi.org/10.1287/mnsc.29.7.792

Chicago Style (17th ed.) Citation

Blog, B., G. van der Hoek, A. H. G. Rinnooy Kan, and G. T. Timmer. "The Optimal Selection of Small Portfolios." Management Science 29, no. 7 (1983): 792-798. https://doi.org/10.1287/mnsc.29.7.792.

MLA (9th ed.) Citation

Blog, B., et al. "The Optimal Selection of Small Portfolios." Management Science, vol. 29, no. 7, 1983, pp. 792-798, https://doi.org/10.1287/mnsc.29.7.792.