APA

Silvestri G. T., Segaloff J. & United States. (1981). The national industry-occupation employment matrix, 1970, 1978, and projected 1990. [Washington, D.C.]: U.S. Department of Labor, Bureau of Labor Statistics.

Chicago

Silvestri George T, Segaloff Joel and United States. 1981. The national industry-occupation employment matrix, 1970, 1978, and projected 1990. [Washington, D.C.]: U.S. Department of Labor, Bureau of Labor Statistics.

Harvard

Silvestri G. T., Segaloff J. and United States. (1981). The national industry-occupation employment matrix, 1970, 1978, and projected 1990. [Washington, D.C.]: U.S. Department of Labor, Bureau of Labor Statistics.

MLA

Silvestri George T, Segaloff Joel and United States. The national industry-occupation employment matrix, 1970, 1978, and projected 1990. [Washington, D.C.]: U.S. Department of Labor, Bureau of Labor Statistics. 1981.