APA (7th ed.) Citation

Educational Services (Washington, D.C.). (1993). Thai (Rev. and expanded edition.). Educational Services Corp..

Chicago Style (17th ed.) Citation

Educational Services (Washington, D.C.). Thai. Rev. and expanded edition. Washington, D.C.: Educational Services Corp., 1993.

MLA (9th ed.) Citation

Educational Services (Washington, D.C.). Thai. Rev. and expanded edition. Educational Services Corp., 1993.