1. 2) Hurst, C. J., Knudsen, G. R., McInerney, M. J., Stetzenbach, L. D., and Walter, M. V., Sampling viruses from soil. In “Manual of Environmental Microbiology”, ed. Hurst, C. J., ASM press, Washington, D.C., pp. 400-405 (1997).
2. 3) Sambrook, J., and Russell, D. W., Molecular cloning: a laboratory Manual, 3rd ed., Cold Spring Harbor Laboratory, Cold Spring Harbor, N.Y. (2001).
3. 5) Prescott, L. M., Harley, J. P., and Klein, D. A., The viruses: bacteriophages. In “Microbiology”, Wm. C. Brown Publishers, IA, pp. 299-305 (1990).