Sering, T. A. (1976). Population education knowledge of the elementary school teachers.
Čikaški stil citiranja (17. izdanje)Sering, Tomasita Arreza. Population Education Knowledge of the Elementary School Teachers. 1976.
MLA način citiranja (9. izdanje)Sering, Tomasita Arreza. Population Education Knowledge of the Elementary School Teachers. 1976.
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