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White pine weevil, Pissodes strobi : risk factors, monitoring and management
Alfaro, René I.
Bok Engelsk 1998
Spruce weevil in British Columbia
R.D. Turnquist and René I. Alfaro
Bok Engelsk 1996
The white pine weevil : biology, damage and management
edited by Rene I. Alfaro, Gyula Kiss and ...
Bok Engelsk 1994
Insects affecting reforestation : biology and damage
edited by René I. Alfaro and S.G. Glover
Bok Engelsk 1989