1. García Ruiz, Mayra. Actividades experimentales para la enseñanza de las ciencias naturales en educación básica.
: Red Perfiles Educativos, . p 1
http://site.ebrary.com/id/10168740?ppg=1
Copyright © Red Perfiles Educativos. . All rights reserved.
May not be reproduced in any form without permission from the publisher,
except fair uses permitted under U.S. or applicable copyright law.

2. García Ruiz, Mayra. Actividades experimentales para la enseñanza de las ciencias naturales en educación básica.
: Red Perfiles Educativos, . p 2
http://site.ebrary.com/id/10168740?ppg=2
Copyright © Red Perfiles Educativos. . All rights reserved.
May not be reproduced in any form without permission from the publisher,
except fair uses permitted under U.S. or applicable copyright law.

3. García Ruiz, Mayra. Actividades experimentales para la enseñanza de las ciencias naturales en educación básica.
: Red Perfiles Educativos, . p 3
http://site.ebrary.com/id/10168740?ppg=3
Copyright © Red Perfiles Educativos. . All rights reserved.
May not be reproduced in any form without permission from the publisher,
except fair uses permitted under U.S. or applicable copyright law.