Approaches to the study of politics : twenty-two contemporary essays exploring the nature of politics and methods by which it can be studied /

por Blackwell, Gordon William 1911-2004
Publicado 1958

Cybernetics, simulation, and conflict resolution : proceedings of the third annual symposium of the American Society for Cybernetics /

por Alker, Hayward R.
Publicado 1971

Man and society in disaster /

por Baker, George Walter 1915-, Baker, George Walter 1915-
Publicado 1962