APA (7th ed.) Citation

Koopman, B. O. (1953). THE OPTIMUM DISTRIBUTION OF EFFORT. Journal of the Operations Research Society of America, 1(2), 52. https://doi.org/10.1287/opre.1.2.52

Chicago Style (17th ed.) Citation

Koopman, Bernard O. "THE OPTIMUM DISTRIBUTION OF EFFORT." Journal of the Operations Research Society of America 1, no. 2 (1953): 52. https://doi.org/10.1287/opre.1.2.52.

MLA (9th ed.) Citation

Koopman, Bernard O. "THE OPTIMUM DISTRIBUTION OF EFFORT." Journal of the Operations Research Society of America, vol. 1, no. 2, 1953, p. 52, https://doi.org/10.1287/opre.1.2.52.