Hilbero, O. C. (1990). The mathematics achievement of freshmen in Notre Dame Marist Schools over a six month period.
Čikaški stil citiranja (17. izdanje)Hilbero, Omar Cristobal. The Mathematics Achievement of Freshmen in Notre Dame Marist Schools over a Six Month Period. 1990.
MLA način citiranja (9. izdanje)Hilbero, Omar Cristobal. The Mathematics Achievement of Freshmen in Notre Dame Marist Schools over a Six Month Period. 1990.
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