by Norton, R.A, Williams, D.D, Hogg, I.D, Palmer, S.C
Published in Canadian journal of zoology (01.03.1988)

by Palmer, Sandra C., Norton, Roy A.
Published in Biochemical systematics and ecology (1992)

by Palmer, S.C. (College of Environmental Science and Forestry S.U.N.Y., Syracuse, NY (USA). Faculty of Environmental and Forest Biology), Norton, R.A
Published in Experimental & applied acarology (01.03.1990)

by Palmer, Sandra C, Norton, Roy A
Published in American Biology Teacher (1988)