Tupas, R. G. (1954). Comments on the Magna Charta of Labor. Philippine Studies : a quarterly.
Cita Chicago Style (17a ed.)Tupas, Rodolfo G. "Comments on the Magna Charta of Labor." Philippine Studies : A Quarterly 1954.
Cita MLA (9a ed.)Tupas, Rodolfo G. "Comments on the Magna Charta of Labor." Philippine Studies : A Quarterly, 1954.
Precaución: Estas citas no son 100% exactas.