@inproceedings{ Vallecillos-Jiménez_MORENO:120-122,

author = { Angustias Vallecillos-Jiménez and ANTONIO MORENO VERDEJO } ,

title = { INITIAL CONCEPTIONS ABOUT SAMPLING TYPES IN SECONDARY LEVEL STUDENTS },

booktitle = { SESSION OF THE ISI (54.2003.BERLÍN, ALEMANIA) },

year = { 2003 },

pages = { 120 - 122 },

location = { BERLÍN, ALEMANIA },

}