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Dyfyniad Arddull ChicagoBerg, Dougles [Ed.], and Howe,Martha M. Mobile DNA. Washington: American society for microbiology, 1989.
Dyfyniad MLABerg, Dougles [Ed.], and Howe,Martha M. Mobile DNA. American society for microbiology, 1989.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.