Changing patterns in fertilizer use Chicago, I., Soil Science Society of America., Nelson, L. B., McVickar, M. H., Munson, R. D., Seatz, L. F., . . . Dinauer, R. C. (1968). Proceedings of a symposium. Wisconsin, Estados Unidos: Soil Science Society of America.

Changing patterns in fertilizer use Chicago, Illinois, Soil Science Society of America, L. B. Nelson, M. H. McVickar, R. D. Munson, L. F. Seatz, S. L. Tisdale, W. C. White, and Richard C. Dinauer. Proceedings of a Symposium. Wisconsin, Estados Unidos: Soil Science Society of America, 1968.

Changing patterns in fertilizer use Chicago, Illinois, et al. Proceedings of a Symposium. Wisconsin, Estados Unidos: Soil Science Society of America, 1968.