APA استشهاد

Lebergott, S. (1964). Manpower in economic growth: American record since 1800. McGraw Hill.

استشهاد بنمط شيكاغو

Lebergott, Stanley. Manpower in Economic Growth: American Record Since 1800. New York: McGraw Hill, 1964.

MLA استشهاد

Lebergott, Stanley. Manpower in Economic Growth: American Record Since 1800. McGraw Hill, 1964.