एपीए उद्धरण

Thier, H. D. (1970). Teaching elementary school science a laboratory approach. Sterling.

शिकागो स्टाइल उद्धरण

Thier, Herbert D. Teaching Elementary School Science a Laboratory Approach. New Delhi: Sterling, 1970.

एमएलए उद्धरण

Thier, Herbert D. Teaching Elementary School Science a Laboratory Approach. Sterling, 1970.