304 W Wolfe, Albert Benedict, 1876- ed. Readings in social problems, ed., with an introduction, by Albert Benedict Wolfe... Boston, New York [etc.] Ginn and company [cl9l6] xiii, 804 p. diagrs. 24 cm. (Half-title: Selections and documents in economics, ed. by W. Z. Ripley) "References" at end of some of the chapters.