"Proceedings of a symposium on extrachromosomal elements in lower eukaryotes, held June 1-5, 1986, at the University of Illinois, Urbana, Illinois"--T...
"Proceedings of a symposium on extrachromosomal elements in lower eukaryotes, held June 1-5, 1986, at the University of Illinois, Urbana, Illinois"--T.p. verso.