Geneva,World Health Organization. (1990). Health education in the control of schistosomiasis. B R Publishing Corporation.
Dyfyniad Arddull ChicagoGeneva,World Health Organization. Health Education in the Control of Schistosomiasis. Delhi: B R Publishing Corporation, 1990.
Dyfyniad MLAGeneva,World Health Organization. Health Education in the Control of Schistosomiasis. B R Publishing Corporation, 1990.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.