APA

Bird P. A., Institute of Economic Affairs Great Britain, . (1967). Essays in the theory and practice of pricing: prize-winning and commended essays entered for the Evan Durbin Competition, 1966. London: I.E.A.

Chicago

Bird P A, Institute of Economic Affairs Great Britain, . 1967. Essays in the theory and practice of pricing: prize-winning and commended essays entered for the Evan Durbin Competition, 1966. London: I.E.A.

Harvard

Bird P. A., Institute of Economic Affairs Great Britain, . (1967). Essays in the theory and practice of pricing: prize-winning and commended essays entered for the Evan Durbin Competition, 1966. London: I.E.A.

MLA

Bird P A, Institute of Economic Affairs Great Britain, . Essays in the theory and practice of pricing: prize-winning and commended essays entered for the Evan Durbin Competition, 1966. London: I.E.A. 1967.