Sommerfelt, H. DNA-DNA hybridization for identification of enterotoxigenic Escherichia coli.. Bergen: University of Bergen, б. г. 76 p. 82-992108-0-1.
Sommerfelt, H. DNA-DNA hybridization for identification of enterotoxigenic Escherichia coli.. Bergen: University of Bergen, б. г. 76 p. 82-992108-0-1.
Sommerfelt, H. (б. г.) DNA-DNA hybridization for identification of enterotoxigenic Escherichia coli., Bergen: University of Bergen 76 p. 82-992108-0-1.
Sommerfelt, H. (б. г.). DNA-DNA hybridization for identification of enterotoxigenic Escherichia coli.. Bergen: University of Bergen, 76 p.
Sommerfelt H. DNA-DNA hybridization for identification of enterotoxigenic Escherichia coli.. Bergen: University of Bergen; б. г.. p. 76 p. ISBN: 82-992108-0-1.