APA (7th ed.) Citation

Williams, C. K., Donaldson, S. E., & Siegel, S. G. (2020). Building an effective security program. De Gruyter. https://doi.org/10.1515/9781501506529

Chicago Style (17th ed.) Citation

Williams, Chris K., Scott E. Donaldson, and Stanley G. Siegel. Building an Effective Security Program. Berlin ; Boston: De Gruyter, 2020. https://doi.org/10.1515/9781501506529.

MLA (9th ed.) Citation

Williams, Chris K., et al. Building an Effective Security Program. De Gruyter, 2020. https://doi.org/10.1515/9781501506529.