Preston, N. L. (1977). The help-wanted index: Technical description and behavioral trends : a research report from the Conference Board's Division of Economic Research. Conference Board.
Цитирование в стиле Чикаго (17-е изд.)Preston, Noreen L. The Help-wanted Index: Technical Description and Behavioral Trends : A Research Report from the Conference Board's Division of Economic Research. New York: Conference Board, 1977.
Цитирование MLA (8-е изд.)Preston, Noreen L. The Help-wanted Index: Technical Description and Behavioral Trends : A Research Report from the Conference Board's Division of Economic Research. Conference Board, 1977.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.