Ardales, V. B. (1992). Basic concepts and methods in research. Great Books Trading.
Chicagoスタイル(17版)引用形式Ardales, Venancio B. Basic Concepts and Methods in Research. Quezon City: Great Books Trading, 1992.
MLA(9版)引用形式Ardales, Venancio B. Basic Concepts and Methods in Research. Great Books Trading, 1992.
警告: この引用は必ずしも正確ではありません.