Park , K. (2015). Park`s textbook of preventive and social medicine (23rd ed.). Banarsidas bhanot.
Dyfyniad Arddull ChicagoPark , K. Park`s Textbook of Preventive and Social Medicine. 23rd ed. Jabalpur: Banarsidas bhanot, 2015.
Dyfyniad MLAPark , K. Park`s Textbook of Preventive and Social Medicine. 23rd ed. Banarsidas bhanot, 2015.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.