Day, Edmund Ezra, 1883-1951. Questions on the principles of economics / by Edmund Ezra Day and Joseph Stancliffe Davis. - Revised ed. - New York : Macmillan, 1922. - xiv, 124 p. 20 cm. This book is arranged particularly for use with Professor Taussig's Principles of economics. Subjects--Topical Terms: Economics--Examinations, questions, etc.