Derv

Derv a reer eus un niver bras a wez pe brousgwez eus ar genad Quercus hag eus un nebeud genadoù tost evel Lithocarpus. A-orin eus an hantervoul norzh eo an derv.
 Daveoù 
Byfield, Liz (1990) : Book Bus: An Oak Tree Independent Phase 1, Collins book bus, London : Collins Educational  
Logan, William B. (2005) Oak : the frame of civilization, New York ; London : W.W. Norton  
Paterson, R.T. (1993) Use of trees by livestock – 5: Quercus, Chatham : Natural Resources Institute 
Royston, Angela (2000) Oak Trees (Life Cycles), Heinemann first library, Oxford : Heinemann Library  
Savage, Stephen (1994) Oak tree (Observing Nature), Hove : Wayland  
Tansley, Arthur G., Sir (1952) : Oaks and oak woods, Field study books, London : Methuen 
 Liammoù diavaez 

 Flora of China - Cyclobalanopsis
 Flora Europaea: Quercus

Rummad:Gwez
Rummad:Quercus
Rummad:Fagaceae
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