Gaya APA

Theodoulou, S, Z., A., C, M. (2013). Public policy: the essential readings. Second Edition (Ed.Ke-2). : Pearson Education.

Gaya MLA

Theodoulou, Stella, Z.., A., Cahn., Matthew. "Public policy: the essential readings. Second Edition". Ed.Ke-2 : Pearson Education, 2013. Textbook.