Cita APA

Harper, J. E., Schrader, L. E. 1., & Howell, R. W. 1. (1985). Exploitation of physiological and genetic variability to enhance crop productivity. Rockville, Md.: American Society of Plant Physiologists.

Citación estilo Chicago

Harper, James E., Lawrence E. 1941- Schrader, y Robert W. 1916- Howell. Exploitation of Physiological and Genetic Variability to Enhance Crop Productivity. Rockville, Md.: American Society of Plant Physiologists, 1985.

Cita MLA

Harper, James E., Lawrence E. 1941- Schrader, y Robert W. 1916- Howell. Exploitation of Physiological and Genetic Variability to Enhance Crop Productivity. Rockville, Md.: American Society of Plant Physiologists, 1985.