TY - BOOK ID - 136380515 TI - Cage-free verification of USDA graded shell eggs. PY - 2019 PB - [Washington, D.C.] : United States Department of Agriculture, Agricultural Marketing Service, DB - UniCat KW - Eggs KW - Eggs KW - Grading KW - Quality UR - https://www.unicat.be/uniCat?func=search&query=sysid:136380515 AB - ER -