Dyfyniad APA

Last, J. M. W. R. B. (1986). Public health & preventive medicine. Prentice- Hall International Inc.

Dyfyniad Arddull Chicago

Last, John M. Wallace Robert B. Public Health & Preventive Medicine. America: Prentice- Hall International Inc, 1986.

Dyfyniad MLA

Last, John M. Wallace Robert B. Public Health & Preventive Medicine. Prentice- Hall International Inc, 1986.

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