CALCULATOR TIPS & ROUTINES ESPECIALLY FOR THE HP-41C/41CV , JOHN DEARING.

Corvallis software Inc. published the book.

Does show signs of age. Has yellowing in spots on front and back cover. And has owners name, address and date written on front page.

Belongs to a local surveyor who is retiring and selling off business. He used all the HP calculators for his surveying and business.

Sold -AS IS-

Email any questions.