Style de citation APA

(1986). U. S. scientists and engineers: 1986. Washington: National Science Foundation.

Style de citation Chicago

U. S. Scientists and Engineers: 1986. Washington: National Science Foundation, 1986.

Style de citation MLA

U. S. Scientists and Engineers: 1986. Washington: National Science Foundation, 1986.

Attention : ces citations peuvent ne pas être correctes à 100%.