000 00749nam a2200253#i 4500
001 0000008518
003 NIH
005 20240220144509.0
008 240220s1972 xx 000 0 eng d
033 _a960706
_b980218
040 _aIMR
_erda
090 _aQX151 bic 1972
100 _aBick, Harmut
_eauthor.
245 0 _aCiliated protozoa : An illustrated guide to the species used as biological indicators in freshwater biology /
264 1 _aGeneva:
_bWHO,
_c1972
300 _a198 pages:
_billustration ;
_c24 cm.
336 _atext
_2rdacontent
337 _aunmediated
_2rdamedia
338 _avolume
_2rdacarrier
650 1 0 _aCiliophora
650 2 0 _aProtozoa - classification
710 _aWorld Health Organization
999 _c21195