Varela, Maria Carolina Cork and cork oak system / M. C. Varela. -- Lit. - Význam duba korkového v oblasti Stredomoria; výrobky z korku.

In Unasylva : international journal of forestry and forest industries. -- FAO : Rome. -- ISSN 0041-6436. -- Vol. 50, no. 2 (197) (1999), s. 42-44

I. Unasylva : international journal of forestry and forest industries. -- Vol. 50, no. 2 (197) (1999), s. 42-44
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