Ecological Science

Virus-Insect-Plant Interactions

By Kerry F. Harris (Texas A&M University, College Station, U.S.A.), Oney P. Smith (Hood College, Frederick, Maryland, James E. Duffus (United States Department of Agriculture, Salinas, California)

Matthews' Plant Virology

By R. E. F. Matthews, Roger Hull

Life in the Soil: A Guide for Naturalists and Gardeners

By James B. Nardi