Dyfyniad APA

Hollingworth, H. L. (1912). The influence of caffein on mental and motor efficiency. The Science press.

Dyfyniad Arddull Chicago

Hollingworth, Harry L. The Influence of Caffein on Mental and Motor Efficiency. New York: The Science press, 1912.

Dyfyniad MLA

Hollingworth, Harry L. The Influence of Caffein on Mental and Motor Efficiency. The Science press, 1912.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.