text London Academic Press 1977 622 p. : ill. ; 29 cm W. Newton (et.al) ANIMAL BREEDING DEVELOPMENT NITROGENT FIXATION 574.6 574.6 NEW r 260702 20260702113303 INLIS000000000000801 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)