Forsyth, P. (1999). Marketing professional services: Practical approaches to practice development (2nd ed.). Kogan Page.
Цитирование в стиле Чикаго (17-е изд.)Forsyth, Patrick. Marketing Professional Services: Practical Approaches to Practice Development. 2nd ed. London: Kogan Page, 1999.
Цитирование MLA (8-е изд.)Forsyth, Patrick. Marketing Professional Services: Practical Approaches to Practice Development. 2nd ed. Kogan Page, 1999.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.