Cita APA (7th ed.)

Ryan, W. J. L., & Pearce, D. W. (1977). Price theory (Revised Edition.). Macmillan.

Cita Chicago (17th ed.)

Ryan, W. J. L., i D. W. Pearce. Price Theory. Revised Edition. London: Macmillan, 1977.

Cita MLA (9th ed.)

Ryan, W. J. L., i D. W. Pearce. Price Theory. Revised Edition. Macmillan, 1977.