Waldren, R. P., & Ehler, S. W. (1976). Laboratory manual of crop science. Minneapolis: Burgess Pub. Co..
Chicago Style CitationWaldren, Richard P., and Stanley Walter Ehler. Laboratory Manual of Crop Science. Minneapolis: Burgess Pub. Co., 1976.
MLA CitationWaldren, Richard P., and Stanley Walter Ehler. Laboratory Manual of Crop Science. Minneapolis: Burgess Pub. Co., 1976.
