TY - BOOK AU - Duncan, George A. AU - Roberts, C. R. TI - Hotbeds: : for transplant production PY - 0000///(197?) CY - (Lexington PB - University of Kentucky. College of Agriculture Cooperative Extension Service KW - Invernaderos KW - Legumbres KW - Plántulas KW - Trasplante N1 - Fotocopia ER -