Draper, W. (1959). Co-operative Control of Library Resources: A Symposium The National Problem—Why Co-operate? Bull Med Libr Assoc.
Dyfyniad Arddull ChicagoDraper, Wesley. "Co-operative Control of Library Resources: A Symposium The National Problem—Why Co-operate?" Bull Med Libr Assoc 1959.
Dyfyniad MLADraper, Wesley. "Co-operative Control of Library Resources: A Symposium The National Problem—Why Co-operate?" Bull Med Libr Assoc 1959.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.