Dyfyniad APA

(1999). The employment situation in April 1999 (final results). NSO Special Release.

Dyfyniad Arddull Chicago

"The Employment Situation in April 1999 (final Results)." NSO Special Release 1999.

Dyfyniad MLA

"The Employment Situation in April 1999 (final Results)." NSO Special Release, 1999.

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