APA Citation

Ausubel, J. H., & Langford, D. H. (1997). Technological trajectories and the human environment. Washington, D.C.: National academy press.

Chicago Style Citation

Ausubel, Jesse H., and Dale H. Langford. Technological Trajectories and the Human Environment. Washington, D.C.: National academy press, 1997.

MLA Citation

Ausubel, Jesse H., and Dale H. Langford. Technological Trajectories and the Human Environment. Washington, D.C.: National academy press, 1997.

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