APA

(1975). THE BELL CREST SERIES. [s.l.]: OXFORD UNIVERSITY PRESS.

Chicago

1975. THE BELL CREST SERIES. [s.l.]: OXFORD UNIVERSITY PRESS.

Harvard

(1975). THE BELL CREST SERIES. [s.l.]: OXFORD UNIVERSITY PRESS.

MLA

THE BELL CREST SERIES. [s.l.]: OXFORD UNIVERSITY PRESS. 1975.