Hewlett Packard Company. (1980). The HP-41C/41CV alphanumeric full performance programmable calculator: Owner's handbook and programming guide. Hewlett Packard.
Čikaški stil citiranja (17. izdanje)Hewlett Packard Company. The HP-41C/41CV Alphanumeric Full Performance Programmable Calculator: Owner's Handbook and Programming Guide. Corvallis, Oregon: Hewlett Packard, 1980.
MLA način citiranja (9. izdanje)Hewlett Packard Company. The HP-41C/41CV Alphanumeric Full Performance Programmable Calculator: Owner's Handbook and Programming Guide. Hewlett Packard, 1980.
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