Barnachea, C. P. (1972). A study of the land productivity of Nueva Ecija and its implications for science teaching in the Central Luzon Polytechnic College.
Čikaški stil citiranja (17. izdanje)Barnachea, Cosme P. A Study of the Land Productivity of Nueva Ecija and Its Implications for Science Teaching in the Central Luzon Polytechnic College. Quezon City, 1972.
MLA način citiranja (9. izdanje)Barnachea, Cosme P. A Study of the Land Productivity of Nueva Ecija and Its Implications for Science Teaching in the Central Luzon Polytechnic College. 1972.
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