Cita APA

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

Citación estilo Chicago

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

Cita MLA

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

Warning: These citations may not always be 100% accurate.