"Tunisia", Edition: 4, Published by Lonely Planet, 344 pages ISBN 1-74059-920-9* APCOR – Associação Portuguesa de Cortiça (Portuguese Cork Association)* Photograph of cork oaks in Portugal* Aronson J., Pereira J.S., Pausas J.G.
From the Cork Oak to cork: A sustainable ecosystem==External links==* As the cork is harvested* APCOR – Associação Portuguesa de Cortiça (Portuguese Cork Association)* Aronson J., Pereira J.S., Pausas J.G.