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Neil Helyer
Neil Helyer is the author of "Biological Control in Plant Protection", "Biological Control in Plant Protection: a Colour Handbook, Second Edition" and "Color Handbook of Biological Control in Plant Protection".
Books by Neil Helyer
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Color Handbook of...
Helyer, Neil
Hardback:
$39.95
Biological Contro...
Helyer, Neil
Digital (delivered electronically):
$160.00
Biological Contro...
Helyer, Neil
Electronic book text:
$119.94
Biological Contro...
Helyer, Neil
Hardback:
$145.00