Manual of methods in aquatic environment research
Strin, J.
Manual of methods in aquatic environment research - Rome FAO 1981 - 70 p. - No. 209; FAO Fisheries Technic .
577.472:614.77
Manual of methods in aquatic environment research - Rome FAO 1981 - 70 p. - No. 209; FAO Fisheries Technic .
577.472:614.77