How to use a plankton net  [kit] 

 - 1 sound cassette,1 film strip, 33 slaids, 1 study guide  in container, 22 X 15 X 5 cm. 
 - Environmental Skills series [kit] .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Marine plankton--Collection and preservation.<br/>Marine ecology--Technique.<br/>Plankton.