TY  - BOOK
AU  - Kotler, Philip.                                                                                                                                                                                                                                                                                             
TI  - Principles of marketing                                                                                                                                                                                                                                                                                                                                                                                         
U1  - 658.8 K874p4 1989                                                                   
PY  - 1989///
KW  - Mercadotecnia
ER  -