著者名,書名,版表示,出版者名,出版年,シリーズ名,番号,ISBN,ISSN,URL American Gear Manufacturers Association,For surface durability of double enveloping-worm gearing,Rev. and adopted,American Gear Manufacturers Association,1954,AGMA standard,,,,https://cir.nii.ac.jp/crid/1130004957426211200