The Scale - Systematic Entomology Laboratory (U.S.) (Systematic Entomology Lab, 1983)

A selected bibliography of the Coccoidea - Morrison, Harold, 1890 -1963 (U.S. Dept. of Agriculture, 1957)

A selected bibliography of the Coccoidea : first supplement - Morrison, Emily R. (U.S. Dept. of Agriculture, 1965)