[Experience in using edge-perforated punch cards in the work of the municipal section of an epidemiological health station].
D011635:Public Health Administration / Q000379:methods*; D011676:Punched-Card Systems; D012426:Russia; D014881:Water Supply
Opyt primeneniia perfokart s kraevoĭ perforatsieĭ v rabote kommunal'nogo otdela sanépidstantsii.