机读格式显示(MARC)
- 000 00432cam a2200169 a 4500
- 008 871019s1990 gw a b 100 0 ger
- 245 00 |a Naturschutz bodenschutz.
- 260 __ |a Bonn : |b [s.n.], |c 1990.
- 300 __ |a 187 p. : |b ill. ; |c 21 cm.
- 650 _0 |a Environmental protection.
- 650 _0 |a Environmental engineering.