Ardales, V. B. (1992). Basic concepts and methods in research. Great Books Trading.
Style de citation Chicago (17e éd.)Ardales, Venancio B. Basic Concepts and Methods in Research. Quezon City: Great Books Trading, 1992.
Style de citation MLA (9e éd.)Ardales, Venancio B. Basic Concepts and Methods in Research. Great Books Trading, 1992.
Attention : ces citations peuvent ne pas être correctes à 100%.