APA (7th ed.) Citation

Sevilla, C. G. (1988). An introduction to research methods. Rex Book Store.

Chicago Style (17th ed.) Citation

Sevilla, Consuelo G. An Introduction to Research Methods. Manila: Rex Book Store, 1988.

MLA (9th ed.) Citation

Sevilla, Consuelo G. An Introduction to Research Methods. Rex Book Store, 1988.