top

English
Persona    Opera   
Persona/Opera
Vai a Pubblicazioni
Persona/Ente/Famiglia
   

Espandi
Riduci






Seleziona tutte
Deseleziona


A study of the deterioration of book papers in libraries
Espandi opera
...
A study of the removal of sulphur dioxide from library air
Espandi opera
...
A survey of storage conditions in libraries relative to the preservation of records
Espandi opera
...

Summary report of Bureau of Standards research on preservation of records
Espandi opera
...