Gaya APA

Friedrich, C, J., Mason, E, S. (1940). Public Policy : A Yearbook of the Graduate School of Public Administration, Harvard University . Camridge: Harvard University Press.

Gaya MLA

Friedrich, C, J., Mason, Edward, S. "Public Policy : A Yearbook of the Graduate School of Public Administration, Harvard University". Camridge: Harvard University Press, 1940. Texts.