Martin, R. S., Boulding, K. S., & Miller, R. G. (1965). Prologue to economic understanding. Charles E. Merrill Books, Inc.
Cita Chicago (17th ed.)Martin, Richard S., Kenneth S. Boulding, i Reuben G. Miller. Prologue to Economic Understanding. Ohio: Charles E. Merrill Books, Inc, 1965.
Cita MLA (9th ed.)Martin, Richard S., et al. Prologue to Economic Understanding. Charles E. Merrill Books, Inc, 1965.
Atenció: Aquestes cites poden no estar 100% correctes.