Cita APA (7a ed.)

(1992). Essentials of programming languages / Daniel P. Friedman, Mitchell Wand, Christopher T. Haynes ; foreword by Harold Abelson.

Cita Chicago Style (17a ed.)

Essentials of Programming Languages / Daniel P. Friedman, Mitchell Wand, Christopher T. Haynes ; Foreword by Harold Abelson. 1992.

Cita MLA (9a ed.)

Essentials of Programming Languages / Daniel P. Friedman, Mitchell Wand, Christopher T. Haynes ; Foreword by Harold Abelson. 1992.