Gaya APA

McGuffog, T., Wadsley, N. (1999). The general principles of value chain management (Vol. 4 Issue: 5, pp.218-225). United Kingdom: Emerald Insight.

Gaya MLA

McGuffog, Tom., Wadsley, Nick. "The general principles of value chain management". Vol. 4 Issue: 5, pp.218-225 United Kingdom: Emerald Insight, 1999. Article.