Cita APA (7a ed.)

Palsberg, J., & Schwartzbach, M. J. (1994). Object-oriented type systems. John Wiley & Sons.

Cita Chicago Style (17a ed.)

Palsberg, Jens, y Michael J. Schwartzbach. Object-oriented Type Systems. Chichester [etc.]: John Wiley & Sons, 1994.

Cita MLA (9a ed.)

Palsberg, Jens, y Michael J. Schwartzbach. Object-oriented Type Systems. John Wiley & Sons, 1994.