Seaton, R. S. (1976). Here's how: Health education by extension. William Carrey Library.
Dyfyniad Arddull ChicagoSeaton, Ronald S. Here's How: Health Education by Extension. California: William Carrey Library, 1976.
Dyfyniad MLASeaton, Ronald S. Here's How: Health Education by Extension. William Carrey Library, 1976.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.