Dyfyniad APA

Willis, R. J. B., Baildam, E., & Marshall, D. (2001). How to stay healthy. The Stanborough Press.

Dyfyniad Arddull Chicago

Willis, Richard J. B., Eileen Baildam, and David Marshall. How to Stay Healthy. Grantham: The Stanborough Press, 2001.

Dyfyniad MLA

Willis, Richard J. B., et al. How to Stay Healthy. The Stanborough Press, 2001.

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