Cita APA (7a ed.)

Hopkins, T., & Horan, B. (1995). Smalltalk: An introduction to application development using VisualWorks. Prentice-Hall.

Cita Chicago Style (17a ed.)

Hopkins, T., y Bernard Horan. Smalltalk: An Introduction to Application Development Using VisualWorks. London [etc.]: Prentice-Hall, 1995.

Cita MLA (9a ed.)

Hopkins, T., y Bernard Horan. Smalltalk: An Introduction to Application Development Using VisualWorks. Prentice-Hall, 1995.