海量图书期刊资源,随时随地畅享阅读乐趣
Economics OnlineDrucilla Ekwurzel and John McMillan · Journal of Economic Literature · 2001
Economics OnlineEkwurzel, Drucilla; McMillan, John · Journal of Economic Literature · 2001
Low-Cost Online Searching TechniquesDrucilla Ekwurzel and Bernard Saffran · The Journal of Economic Education · 1987
Low-Cost Online Searching TechniquesEkwurzel, Drucilla; Saffran, Bernard · The Journal of Economic Education · 1987
Online Information Retrieval for Economists-The Economic Literature IndexDrucilla Ekwurzel and Bernard Saffran · Journal of Economic Literature · 1985