Cita APA (7a ed.)

LaLonde, W. R., & Pugh, J. R. (1990). Inside Smalltalk. [S.n.].

Cita Chicago Style (17a ed.)

LaLonde, Wilf R., y John R. Pugh. Inside Smalltalk. Englewood Cliffs: [S.n.], 1990.

Cita MLA (9a ed.)

LaLonde, Wilf R., y John R. Pugh. Inside Smalltalk. [S.n.], 1990.