Alpha Helix:

3 ship citations (3 free) in 2 resources
Web WorldCat
Published OCLC, Dublin, Ohio
Alpha Helix -- M. V.
Book The H. W. McCurdy Marine History of the Pacific Northwest Illustration
Author Gordon R. Newell, ed.
Published Superior Publishing Company, Seattle,
Pages 676, 702
Web WorldCat
Published OCLC, Dublin, Ohio