Thier, H. D. (1970). Teaching elementary school science a laboratory approach. Sterling.
Chicago-stil citatThier, Herbert D. Teaching Elementary School Science a Laboratory Approach. New Delhi: Sterling, 1970.
MLA-referensThier, Herbert D. Teaching Elementary School Science a Laboratory Approach. Sterling, 1970.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.