APA (7th ed.) Citation

Baecker, R. M. (1990). A programmer's interface: A visually enhanced and animated programming environment. [s.n.].

Chicago Style (17th ed.) Citation

Baecker, Ronald M. A Programmer's Interface: A Visually Enhanced and Animated Programming Environment. [S.l.]: [s.n.], 1990.

MLA (9th ed.) Citation

Baecker, Ronald M. A Programmer's Interface: A Visually Enhanced and Animated Programming Environment. [s.n.], 1990.