Canadian Entonologist. v.123(n1-3), Jan-June, 1991
Ewen, Alwyn B., ed.
Canadian Entonologist. v.123(n1-3), Jan-June, 1991 edited by Alwyn B. Ewen - Ottawa Entomological Society of Canada 1991 - v.123, 720 p.; 24cm.
0008347X
Canadian Entonologist. v.123(n1-3), Jan-June, 1991 edited by Alwyn B. Ewen - Ottawa Entomological Society of Canada 1991 - v.123, 720 p.; 24cm.
0008347X