1.
American Sign Language Video Dictionary and Inflection Guide
by Poor, Geoffrey S., Graybill...
ISBN: 9780972094207
List Price: $61.51
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Barron's 500 Flash Cards of American Sign Language
by Poor, Geoffrey S.
ISBN: 9780764162220
List Price: $24.99
3.
Barron's Dictionary of American Sign Language
by Poor, Geoffrey S., Kim, Chr...
ISBN: 9780764160899
List Price: $29.99
4.
5.
River network scaling: Optimality and anisotropy.
by Geoffrey M Poore
ISBN: 9781249041580
List Price: $69.00
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American Sign Language Flashcards: 500 Words and Phrases, Second Edition
by Poor, Geoffrey S.
ISBN: 9781506288734
7.