APA (7. basım) Alıntı

Espejo, R. (2004). Tribute to Stafford Beer. Emerald Group Publishing.

Chicago Style (17. basım) Atıf

Espejo, Raul. Tribute to Stafford Beer. Bradford, West Yorkshire, England: Emerald Group Publishing, 2004.

MLA (9th ed.) Atıf

Espejo, Raul. Tribute to Stafford Beer. Emerald Group Publishing, 2004.