Baehr, P. R., & Wittrock, B. (1981). Policy analysis and policy innovation: Patterns problems and potentials. Sage publications.
استشهاد بنمط شيكاغوBaehr, Peter R., و Bjorn Wittrock. Policy Analysis and Policy Innovation: Patterns Problems and Potentials. London: Sage publications, 1981.
MLA استشهادBaehr, Peter R., و Bjorn Wittrock. Policy Analysis and Policy Innovation: Patterns Problems and Potentials. Sage publications, 1981.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.