Cita APA (7th ed.)

Blaxter, L. H. T. (2002). How to research (Second.). Viva books Private Limited.

Cita Chicago (17th ed.)

Blaxter, Loraine Hughes,Christina Tight,Malcolm. How to Research. Second. New Delhi: Viva books Private Limited, 2002.

Cita MLA (8th ed.)

Blaxter, Loraine Hughes,Christina Tight,Malcolm. How to Research. Second. Viva books Private Limited, 2002.