Snavely, William P. Theory of economic systems: : capitalism, socialism, and corporatism [electronic resource] / [by] William P. Snavely. With contributions by Morris Singer [and] Dominick Armentano.. — Columbus, Ohio, : C. E. Merrill Pub. Co., [1969]. — xi, 252 p. 23 cm. — (Merrill's economic systems series).