APA (7th ed.) Citation

Hart, O. D., & Moore, J. (1999). On the design of hierarchies: Coordination versus specialization.

Chicago Style (17th ed.) Citation

Hart, Oliver D., and John Moore. On the Design of Hierarchies: Coordination Versus Specialization. Cambridge, Mass, 1999.

MLA (9th ed.) Citation

Hart, Oliver D., and John Moore. On the Design of Hierarchies: Coordination Versus Specialization. 1999.