Tohutoro APA (7th ed.)

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

Tohutoru Kātū Chicago (17th ed.)

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

Tohutoro MLA (9th ed.)

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