Race differences in earnings :
a survey and new evidence /
James P. Smith, Finis Welch.

APA Citation

Smith, J. P., Welch, F. (1978). Race differences in earnings: a survey and new evidence. Santa Monica, Calif.: Rand Corporation.

MLA Citation

Smith, James P., 1943-, and Finis Welch. Race Differences In Earnings: a Survey And New Evidence. Santa Monica, Calif.: Rand Corporation, 1978.

Warning: These citations may not always be complete (especially for serials).