Cita APA (7th ed.)

Estolas, J. V., & Boquiren, D. T. (1973). Fundamentals of research. G. Miranda.

Cita Chicago (17th ed.)

Estolas, Josefina V., i Daisy T. Boquiren. Fundamentals of Research. Manila: G. Miranda, 1973.

Cita MLA (9th ed.)

Estolas, Josefina V., i Daisy T. Boquiren. Fundamentals of Research. G. Miranda, 1973.