Gaya APA

Morgan, M, S., Butter, F, A, D. (2000). Empirical models and policy-making : interac and institutions . London: Routledge.

Gaya MLA

Morgan, Mary, S.., Butter, Frank, A.G., Den. "Empirical models and policy-making : interac and institutions". London: Routledge, 2000. Text.