TY - BOOK AU - Ruskin-Brown,Ian TI - Mastering marketing: a comprehensive introduction to the skills of developing and defending your company's revenue SN - 1854181181 AV - HF5415.R863 1999 .R863 1999 U1 - 658.8 21 PY - 1999/// CY - London PB - Hawksmere N1 - "The core skills of profitable marketing"--Cover ER -