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[null,"1.","Record Nr.",null,"UNINA9910708313803321"]
[null,null,"Autore",null,"Wallen Norman E"]
[null,null,"Titolo",null,"Educational research : a guide to the process / / Norman E. Wallen, Jack R. Fraenkel"]
[null,null,"Pubbl/distr/stampa",null,"Mahwah, N.J., : Lawrence Erlbaum Associates, 2001"]
[{"$nulls":4},"[Washington, D.C.] : , : Department of the Interior, Bureau of Education, , [1923]"]
[{"$nulls":4},"Washington : , : Government Printing Office"]
[null,null,"ISBN",null,"1-135-70590-9"]
[null,null,"Edizione",null,"[2nd ed.]"]
[null,null,"Descrizione fisica",null,"1 online resource (xix, 548 p. ) : ill"]
[null,null,"Collana",null,"Bulletin ; ; 1923, no. 42"]
[null,null,"Disciplina",null,"370.72"]
[null,null,"Soggetti",null,"Education - Research"]
[{"$nulls":4},"Electronic books."]
[null,null,"Lingua di pubblicazione",null,"Inglese"]
[null,null,"Formato",null,"Materiale a stampa"]
[null,null,null,"Livello bibliografico","Monografia"]
[null,null,null,"Note generali","Title from title screen (viewed on June 29, 2016)."]
[{"$nulls":4},"\"Iowa Child Welfare Research Station.\""]
[{"$nulls":4},"Publication pre-dates Federal Depository Library Program (FDLP) item numbers. No FDLP item number has been assigned."]
[{"$nulls":4},"\"Advance sheets from the Biennnial Survey of Eduacation 1920-1922.\""]
[null,null,null,"Nota di bibliografia","Includes bibliographical references and index."]