Science experiences for preschoolers : an occasional sourcebook of the council for elementary science 
edited by Leon Ukens 
 - Ohio  ERIC  1986 
 - ix,112p.:ill.;  24cm.- 
 - CESI sourcebook; no.4 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ecology-Study and Teaching
<br/><br/><label>Dewey Class. No.: </label>333.7071  / UKE