APA stil citiranja
Barnard, J. D. (1956). Teaching high-school science: Teaching high-school science. Washington: National Education Association.
Chicago stil citiranjaBarnard, J. Darrell. Teaching high-school science: Teaching high-school science. Washington: National Education Association, 1956.
MLA stil citiranjaBarnard, J. Darrell. Teaching high-school science: Teaching high-school science. Washington: National Education Association, 1956.
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