TY - BOOK ID - 132473441 TI - Algebra AU - van Loon, Simon AU - Kerremans, H. PY - 1939 PB - Antwerpen Sikkel DB - UniCat KW - Didactics of mathematics KW - Didactics of secundary education KW - Algebra UR - https://www.unicat.be/uniCat?func=search&query=sysid:132473441 AB - ER -