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yhteensä 15 hakutulosta
Mean Electron Density Variations of the Quiet Ionosphere No. 8 - October 1959; NBS Technical Note 40-8
Mean Electron Density Variations of the Quiet Ionosphere No. 6 - August 1961; NBS Technical Note 40-6
Mean Electron Density Variations of the Quiet Ionosphere 4 - June 1959; NBS Technical Note 40-4
This work has been selected by scholars as being culturally important and is part of the knowledge base of civilization as we know it.This work is in the public domain in the …
Silvical Characteristics of White Ash (Fraxinus Americana); no.123
This work has been selected by scholars as being culturally important and is part of the knowledge base of civilization as we know it.This work is in the public domain in the …
Vertical Cross Sections of the Ionosphere Across the Geomagnetic Equator; NBS Technical Note 138
This work has been selected by scholars as being culturally important and is part of the knowledge base of civilization as we know it.This work is in the public domain in the …
Ionosonde Observations of Artificially Produced Electron Clouds: Firefly 1960.; NBS Technical Note 135
Hugh Roy Cullen: a Story of American Opportunity
Mean Electron Density Variations of the Quiet Ionosphere No. 12 - February 1960; NBS Technical Note 40-12
A Bibliography on Forest Genetics and Forest Tree Improvement, 1954; no.77
Silvical Characteristics of Green Ash: (Fraxinus Pennsylvania); no.126
This work has been selected by scholars as being culturally important and is part of the knowledge base of civilization as we know it.This work is in the public domain in the …
Possibilities of Breeding Weevil-resistant White Pine Strains; no.115
The Rainbow Dictionary
This work has been selected by scholars as being culturally important and is part of the knowledge base of civilization as we know it.This work is in the public domain in the …