Grob G-115 · The Encyclopedia of Aircraft David C. Eyre

The G-115 was one of the first aircraft to achieve full certification and go into full production that was constructed of glass-fibre reinforced plastics (GFRP).

Publication - The Unz Review

Antiquarian & Collectable, Books, Comics & Magazines - PicClick UK

Oxford English Dictionary [18, 2 ed.]

Crystal Reports - Dewey Breakdown - Mackin Educational Resources