Cita APA

Blaxter, L., Hughes, C., & Tight, M. (2009). How to research (3rd ed.). Open University Press.

Chicago Edition Citation

Blaxter, Loraine, Christina Hughes, i Malcolm Tight. How to Research. 3rd ed. Berkshire, England ; New York: Open University Press, 2009.

Cita MLA

Blaxter, Loraine, et al. How to Research. 3rd ed. Open University Press, 2009.