TY - BOOK ID - 127692112 TI - Media math : basic techniques of media evaluation. PY - 1987 SN - 0844231428 PB - Lincolnwood (Ill.) : NTC Business Books, DB - UniCat KW - Advertising media planning KW - Business mathematics. KW - Mathematics. UR - https://www.unicat.be/uniCat?func=search&query=sysid:127692112 AB - ER -