Survival of the BUK vaccinal strain of Aujeszky's disease virus in aerosol form,

Mode of access: Internet.

The use of developing egg in virus research.

Mode of access: Internet.

Bioassay of clover wound tumor virus and the mycoplasmalike organisms of peach Western X and aster yellows /

Literature cited: p. 28-32.

Ecology of the green peach aphid as a vector of beet western yellows virus of sugarbeets /

Issued Aug. 1979.

Effects of heat treatment on the viability of rice : a report of research and a literature survey /

Caption title.

Biological characteristics of barley stripe-mosaic virus strains and their evolution /

Caption title.

Oryza sativa; literature on the races of rice in India,

"Vegetable product series, no. 113."

Virus diseases of sugar beets in California /

Mode of access: Internet.