APA aipamena

KUMAR, V. (2007). 21st CENTURY STUDENT'S COMPANION.

Chicago Style aipamena

KUMAR, VIJAYA. 21st CENTURY STUDENT'S COMPANION. 2007.

MLA aipamena

KUMAR, VIJAYA. 21st CENTURY STUDENT'S COMPANION. 2007.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.