text Stuttgart Ferdinand Enke 1955 ger vii, 110 p.: ill. ; 24 cm. A. Jacob MAGNESIUM PLANT NUTRITION 631.811.6 631.811.6 JAC m 210922 20210922015450 INLIS000000000004207 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)