Leif Cocks books & textbook

Orangutans. My Cousins, My Friends.

2016T Paperback
isbn-10: 0995408017 / isbn-13: 9780995408012

Finding Our Humanity

The Orangutan Project /2019-01-01 Paperback
isbn-10: 0648501809 / isbn-13: 9780648501800

Orangutans: And Their Battle for Survival

Uwa Pub /2003T Paperback / 80 Pages
isbn-10: 1876268808 / isbn-13: 9781876268800