Richard Cotton

2 titles on Bookis

All books

Testing R Code

Testing R Code

2017

Learning R

Learning R

2013

The social marketplace for new and used books.

Get started

Learn to sell
Learn to buy
Buy textbooks
Sign up
Buy a giftcard
For the authors

Support

Help
Track a shipment
Terms of use
Privacy policy
Cookies policy

Company

About us
Work with us
Give feedback
Categories

Contact us

Fast delivery with

Safe payments by

Visa
Mastercard
Vipps
Klarna

© 2026 Bookis AS