TY - BOOK ID - 133561804 TI - Radioactive tags show how plant growth regulators act PY - 1947 PB - Washington, D.C U.S. Dept. of Agriculture, Office of Information, Press Service DB - UniCat KW - Biological control systems KW - Growth (Plants) UR - https://www.unicat.be/uniCat?func=search&query=sysid:133561804 AB - ER -