Knopper, Helen
Wilde vlier / Helen Knopper
Contact, 1989
Buku Teks
Garner, Helen
Monkey grip / Helen Garner
Penguin Books, 1967.
Buku Teks
Tappan, Helen
The paleobiology of plant protists/ Helen Tappan
W H Freeman, 1980
Buku Teks
Duncan, Helen
Kate rice prospector / Helen Duncan
Simon , 1984
Buku Teks
The metaphysical poets / edited by Helen Gardner
edited by Helen Gardner
Oxford University Press, 1961
Buku Teks