Wells, L. (1972). The product life cyle and nternational trade. Havard: President and Fellows of Havard College.
Chicago-стиль цитированияWells, Louis. The Product Life Cyle and Nternational Trade. Havard: President and Fellows of Havard College, 1972.
MLA-цитированиеWells, Louis. The Product Life Cyle and Nternational Trade. Havard: President and Fellows of Havard College, 1972.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.