Scheaffer, Richard L., Elementary survey sampling / Richard L. Scheaffer, William Mendenhall, R. Lyman Ott, Kenneth Gerow - Seventh edition - xi, 436 páginas : ilustraciones - Advanced series . ISBN: 9780840053619 0840053614 Subjects--Topical Terms: Muestreo (Estadística) LC Class. No.: HA31.2 / S23 2012