APA (7th ed.) Citation

Shafer, D. (1988). HyperTalk programming (Rev. ed.). Hayden Books.

Chicago Style (17th ed.) Citation

Shafer, Dan. HyperTalk Programming. Rev. ed. Indianapolis, Ind., USA: Hayden Books, 1988.

MLA (9th ed.) Citation

Shafer, Dan. HyperTalk Programming. Rev. ed. Hayden Books, 1988.