WORLD Health Organization Katz, F.M. Snow, R. Assessing health workers' performance : a manual for trainning and supervision /[by] F.M.Katz and R.Snow - Geneva WHO 1980 - 175 p.- - public health papers No.72 . ISBN: 9241300728 Subjects--Topical Terms: Health worker Training manual Training manual -work performance Dewey Class. No.: 362.1 / WOR