Dyfyniad APA

Lewis, H. B., Ahern, A. L., & Jebb, S. A. (2012). How much should I eat? A comparison of suggested portion sizes in the UK. Cambridge University Press.

Dyfyniad Arddull Chicago

Lewis, Hannah B., Amy L. Ahern, and Susan A. Jebb. How Much Should I Eat? A Comparison of Suggested Portion Sizes in the UK. Cambridge University Press, 2012.

Dyfyniad MLA

Lewis, Hannah B., Amy L. Ahern, and Susan A. Jebb. How Much Should I Eat? A Comparison of Suggested Portion Sizes in the UK. Cambridge University Press, 2012.

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