Cita APA (7th ed.)

Berry, R. (1994). The research project: How to write it (3rd.). Roultdge.

Cita Chicago (17th ed.)

Berry, Ralph. The Research Project: How to Write It. 3rd. London: Roultdge, 1994.

Cita MLA (9th ed.)

Berry, Ralph. The Research Project: How to Write It. 3rd. Roultdge, 1994.