APA

Organization for Economic Co-operation and Development (Paris). Centre for Educational Research and Innovation. Indicators of Education Systems, . (1998). Education at a glance. París: OCDE.

Chicago

Organization for Economic Co-operation and Development (Paris). Centre for Educational Research and Innovation. Indicators of Education Systems, . 1998. Education at a glance. París: OCDE.

Harvard

Organization for Economic Co-operation and Development (Paris). Centre for Educational Research and Innovation. Indicators of Education Systems, . (1998). Education at a glance. París: OCDE.

MLA

Organization for Economic Co-operation and Development (Paris). Centre for Educational Research and Innovation. Indicators of Education Systems, . Education at a glance. París: OCDE. 1998.