Gaya APA

O'SULLIVAN, E., RASSEL, G, R, [. (1995). Research methods for public administrators (2nd ed.). White Plains, N.Y.: Logman Publishers USA.

Gaya MLA

O'SULLIVAN, Elizabethann., RASSEL, Gary, Raymond, [pengbers]. "Research methods for public administrators". 2nd ed. White Plains, N.Y.: Logman Publishers USA, 1995. Buku.