text Hanoi Foreign Languages Publishing House 1985 Ind 70 p. : 22 cm. 70 p. : 22 cm. DANG, NGOC THANH AQUATIC ENVIRONMENT VIETNAM 577.472(26)(597) 577.472DANa INLIS000000000002497 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)