TY - BOOK AU - Sager,Juan C. AU - David Dungworth AU - Peter F. McDonald TI - English special languages: : principles and practice in science and technology SN - 3870970944 AV - IKR PE1073.S262 PY - 1980/// CY - London : PB - Oscar Brndstetter Verlag KW - English languages KW - Study and teaching KW - English KW - Special language N1 - Includes bibliographies ER -