Código QR (código de barras bidimensional)

Communications pretesting

Detalhes bibliográficos
Autor principal:	Bertrand, Jane T.
Formato:	Livro
Idioma:	English
Publicado em:	Chicago Communication Laboratory Community and Family Study Center, University of Chicago, c1978.
coleção:	Media monograph 6
Assuntos:	Communication in birth control > Latin America. Communication in birth control > Methodology. Communication in rural development > Methodology.