00000nam a2200000 a 4500 20251202164141.0 503 YEA Calhoun, David _ 1986 yearbook of science and the future Chicago Encyclopaedia Britannica, Inc. 1986 448p. 24 cm. HB Science Yearbook Yearbook of science and the future Eng 100 010 _ 118 C 1273 1273 0 0 0 0 PU PU 1988-04-08 0 503 YEA 118 BK