Biological nomenclature / Charles Jeffrey for the Systematics Association; foreword by V. H. Heywood. Jeffrey, Charles. Systematics Association. Biology Nomenclature. Biology Terminology. QH83 .J43 1973b 574.014 J46b Includes bibliographical references : p. 51-52. and index. London : Edward Arnold, c1973. c1973. 1973 Text ix, 69 p. : eng Special topics in biology series