APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

Ryan, William James Louden, and D. W. Pearce. Price Theory / (by) W.J.L Ryan. Revised ed. London (etc.): Macmillan, 1977.

MLA (9th ed.) Citation

Ryan, William James Louden, and D. W. Pearce. Price Theory / (by) W.J.L Ryan. Revised ed. Macmillan, 1977.

Warning: These citations may not always be 100% accurate.