Plumbe, W. J. (1964). Preservation of books. Oxford University Press.
Dyfyniad Arddull ChicagoPlumbe, Wilfred J. Preservation of Books. Oxford University Press, 1964.
Dyfyniad MLAPlumbe, Wilfred J. Preservation of Books. Oxford University Press, 1964.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.