text New York McGraw-Hill 1942 1st ed. Ing xi, 543 p.: ill.; 22 cm. Wilfred W. Robbins; Alden S. Crafts; Richard N. Raynor PLANT PROTECTION 632.51 632.51 ROB w INLIS000000000003792 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)