1. Abou Haidar, M., Pfeiffer, P., Fritsch, C., and Hirth, L., 1973, Sequential reconstitution of tobacco rattle virus, J. Gen. Virol. 21:83.
2. Adam, G., and Sander, E., 1976, Isolation and culture of aphid cells for the assay of insect-transmitted plant viruses, Virology 70:459.
3. Agrawal, H., 1964, Identification of cowpea mosaic virus isolates, Meded. Landbouwhogesch. Wageningen 64–5:1.
4. Agrawal, H., and Maat, D. Z., 1964, Serological relationships among polyhedral plant viruses and production of high-titred antisera, Nature (London) 202:674.
5. Allen, T. C., 1967, Serological relationship between the Oregon strain of tobacco rattle virus and pea early browning virus. Phytopathology 57:97.