APA aipamena

Paredes, D. (2010). Understanding surveys. Malaya.

Chicago Style aipamena

Paredes, Ducky. "Understanding Surveys." Malaya 2010.

MLA aipamena

Paredes, Ducky. "Understanding Surveys." Malaya, 2010.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.