TY - BOOK T1 - Directing the marketing effort A1 - Willsmer, Ray L. 1930- LA - English PP - London PB - Staples Press YR - 1971 UL - https://tuklas.up.edu.ph/Record/UP-99796217602252605 OP - 39 CN - HF 5415 W543 SN - 0286627371 KW - Marketing. ER -