APA aipamena

Upadhyay, D. (1987). Productivity. N.P.C.

Chicago Style aipamena

Upadhyay, D.P. Productivity. N.P.C, 1987.

MLA aipamena

Upadhyay, D.P. Productivity. N.P.C, 1987.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.