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Dyfyniad Arddull ChicagoRasmussen, KB, and G. Blank. The Data Documentation Initiative: A Preservation Standard for Research. Springer, 2007.
Dyfyniad MLARasmussen, KB, and G. Blank. The Data Documentation Initiative: A Preservation Standard for Research. Springer, 2007.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.