APA Цитирование

Wells, L. (1972). The product life cyle and nternational trade. Havard: President and Fellows of Havard College.

Chicago-стиль цитирования

Wells, Louis. The Product Life Cyle and Nternational Trade. Havard: President and Fellows of Havard College, 1972.

MLA-цитирование

Wells, 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%.