Augur, Helen
Zapotec / Helen Augur
Doubleday & Company, Inc., 1954
Buku Teks
Knopper, Helen
Wilde vlier / Helen Knopper
Contact, 1989
Buku Teks
Garner, Helen, author
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
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