APA (7e ed.) Bronvermelding

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

Chicago (17e ed.) Bronvermelding

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

MLA (9e ed.) Bronvermelding

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