Citace podle APA (7th ed.)

Hurd, P. D. (1969). New Directions in teaching secondary school science. Rand McNally.

Citace podle Chicago (17th ed.)

Hurd, Paul Dehart. New Directions in Teaching Secondary School Science. Chicago: Rand McNally, 1969.

Citace podle MLA (9th ed.)

Hurd, Paul Dehart. New Directions in Teaching Secondary School Science. Rand McNally, 1969.

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