USA NPN National Phenology Network

Taking the Pulse of Our Planet

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Phenology Bibliography

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Author Title Type [ Year(Desc)]
Filters: First Letter Of Title is P and Author is Hopp, RJ  [Clear All Filters]
1978
Hopp, RJ. Phenology: An Aid To Agricultural Technology. Vermont Agricultural Experiment Station Bulletin 684. Vermont Agricultural Experiment Station Bulletin (1978).