Published in Proceedings of the Biological Society of Washington, in 1961, in volume 74, pages 1-2
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Published in Proceedings of the Biological Society of Washington, in 1961, in volume 74, pages 105-110
Notes on and a key to species of the genus Cinara (Aphidae) which haveTsuga and Pseudotsuga for host
Published in Proceedings of the Biological Society of Washington, in 1961, in volume 74, pages 111-117
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Published in Proc Biol Soc Washington, in 1961, in volume 74, pages 127-156
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Published in Proceedings of The Biological Society of Washington, in 1961, in volume 74, pages 275-280