Bowers, W. W. (1992). Bionomics and ecology of the four-eyed spruce bark beetle, Polygraphus rufipennis (Kirby) (Coleoptera: Scolytidae), in Newfoundland.
Chicago Style (17th ed.) CitationBowers, Woodrow Wade. Bionomics and Ecology of the Four-eyed Spruce Bark Beetle, Polygraphus Rufipennis (Kirby) (Coleoptera: Scolytidae), in Newfoundland. 1992.
MLA (9th ed.) CitationBowers, Woodrow Wade. Bionomics and Ecology of the Four-eyed Spruce Bark Beetle, Polygraphus Rufipennis (Kirby) (Coleoptera: Scolytidae), in Newfoundland. 1992.
Warning: These citations may not always be 100% accurate.