Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.