00439     2200181   4500001002100000035002000021245002100041100001500062260006700077300002500144020001800169084001600187082001100203650001200214650001300226990000900239990000900248INLIS000000000004376  a0010-0321000460  aTropical oysters  aD.B Quayle  aOttawabInternational development Research centre (IDRC)c1980  a80 p.c: ill ; 25 cm  a0-85936-181-9  a15345:50:24  a639.41  aTROPIKA  aOYSTERS.  a1598  a1598