TY - BOOK ID - 145883679 TI - Learning science in a changing world : cross-national studies of science achievement : 1970 to 1984 PY - 1992 SN - 9291210013 PB - International Association for the Evaluation of Educational Achievement, DB - UniCat UR - https://www.unicat.be/uniCat?func=search&query=sysid:145883679 AB - ER -