共 50 条
- [31] IMPLICATIONS OF CHANGES IN MARKET-STRUCTURE ON EXTENSION MARKETING PROGRAMS AND ADMINISTRATION JOURNAL OF FARM ECONOMICS, 1961, 43 (03): : 674 - 683
- [39] MARKETING POLICIES FOR NEUROLEPTIC DRUGS BRITISH MEDICAL JOURNAL, 1984, 289 (6456) : 1455 - 1456