International Wheat Genetics Symposium Columbia, M., Sears, E. R. 1., & Sears, L. M. S. (1973). Proceedings of the Fourth International Wheat Genetics Symposium. Columbia, Mo: Agricultural Experiment Station College of Agriculture University of Illinois.
Citación estilo ChicagoInternational Wheat Genetics Symposium Columbia, Mo.), Ernest Robert 1910- Sears, y Lotti Maria Seteinity Sears. Proceedings of the Fourth International Wheat Genetics Symposium. Columbia, Mo: Agricultural Experiment Station College of Agriculture University of Illinois, 1973.
Cita MLAInternational Wheat Genetics Symposium Columbia, Mo.), Ernest Robert 1910- Sears, y Lotti Maria Seteinity Sears. Proceedings of the Fourth International Wheat Genetics Symposium. Columbia, Mo: Agricultural Experiment Station College of Agriculture University of Illinois, 1973.