Malaay, C. M. (1988). Problems encountered in the implementation of population education in the barangay high schools of La Union, 1986-1987.
Čikaški stil citiranja (17. izdanje)Malaay, Cipriano M. Problems Encountered in the Implementation of Population Education in the Barangay High Schools of La Union, 1986-1987. 1988.
MLA način citiranja (9. izdanje)Malaay, Cipriano M. Problems Encountered in the Implementation of Population Education in the Barangay High Schools of La Union, 1986-1987. 1988.
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