Cita APA (7th ed.)

Ardales, V. B. (1992). Basic concepts and methods in research. Great Books Trading.

Cita Chicago (17th ed.)

Ardales, Venancio B. Basic Concepts and Methods in Research. Quezon City: Great Books Trading, 1992.

Cita MLA (9th ed.)

Ardales, Venancio B. Basic Concepts and Methods in Research. Great Books Trading, 1992.