APA-čujuhus (7. p.)

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

Chicago-čujuhus (17. p.)

Berry, Ralph. The Research Project: How to Write It. 3rd ed. London ; New York, NY: Routledge, 1994.

MLA-čujuhus (9. p.)

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

Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.