Merry, G. (1997). Food poisoning prevention (2nd ed.). South Melbourne: Macmillan Education Australia.
Dyfyniad Arddull ChicagoMerry, Greg. Food Poisoning Prevention. 2nd ed. South Melbourne: Macmillan Education Australia, 1997.
Dyfyniad MLAMerry, Greg. Food Poisoning Prevention. 2nd ed. South Melbourne: Macmillan Education Australia, 1997.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.