APA aipamena

BURKHARDT, R. W. Our Family Richard W. Burkhardt Dan Ann G. Mc Guinness. Benfic Press.

Chicago Style aipamena

BURKHARDT, Richard W. Our Family Richard W. Burkhardt Dan Ann G. Mc Guinness. Benfic Press.

MLA aipamena

BURKHARDT, Richard W. Our Family Richard W. Burkhardt Dan Ann G. Mc Guinness. Benfic Press.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.