text London Methuen 1968 4th ed. Ing ix, 166 p.: ill.; 20 cm. Kenneth M. Smith TROPICAL CROPS FARMERS PUERTO RICO 632 38 632 38 SMI p INLIS000000000003801 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)