Dyfyniad APA

Wehby, G., Murray, J. C., Wilcox, A., & Lie, R. T. (2011). Smoking and Body Weight: Evidence using Genetic Instruments.

Dyfyniad Arddull Chicago

Wehby, George, Jeffrey C. Murray, Allen Wilcox, and Rolv T. Lie. Smoking and Body Weight: Evidence Using Genetic Instruments. 2011.

Dyfyniad MLA

Wehby, George, Jeffrey C. Murray, Allen Wilcox, and Rolv T. Lie. Smoking and Body Weight: Evidence Using Genetic Instruments. 2011.

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