text Ottawa International development Research centre (IDRC) 1980 80 p. : ill ; 25 cm TROPIKA OYSTERS 639.41 15345:50:24 0-85936-181-9 INLIS000000000004376 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)