APA (7th ed.) Citation

Yi, C. (1990). Three essays on the economics of advertising in oligopoly. [publisher not identified].

Chicago Style (17th ed.) Citation

Yi, Chae-u. Three Essays on the Economics of Advertising in Oligopoly. [Place of publication not identified]: [publisher not identified], 1990.

MLA (9th ed.) Citation

Yi, Chae-u. Three Essays on the Economics of Advertising in Oligopoly. [publisher not identified], 1990.