Hart, D. Modelling with projectiles, 1988: CIP t.p. (Tony Croft, B.Sc, M.Phil., lect. in Dept. of Math, Crewe and Alsager Coll. of Higher Ed.) data sheet (Croft, Tony (Anthony), b. 10-27-57)
Engineering maths first-aid kit, 2000: CIP t.p. (Anthony Croft)