Roberts, N. C. (1996). Transforming public policy: Dynamics of policy entrepreneurship and innovation. Jossey- Bass.
Chicago-viite (17. p.)Roberts, Nancy C. Transforming Public Policy: Dynamics of Policy Entrepreneurship and Innovation. Sanfrancisco: Jossey- Bass, 1996.
MLA-viite (9. p.)Roberts, Nancy C. Transforming Public Policy: Dynamics of Policy Entrepreneurship and Innovation. Jossey- Bass, 1996.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.