Books by Lloyd V. Knutson
Systematics : relevance, resou
Systematics : relevance, resources, services, and management
Foundations for a national biological survey
Biological control of pests by mites
Research for small farms
Biosystematics in agriculture
Biosystematics in agriculture
Taxonomic revision of the aphi
Taxonomic revision of the aphid-killing flies of the genus Sphaerophoria in the Western Hemisphere (Syrphidae)