E. & F.N. Spon & Davis Langdon Consultancy. (2009). Spon's civil engineering and highway works price book (23rd ed.). Taylor & Francis.
Цитирование в стиле Чикаго (17-е изд.)E. & F.N. Spon и Davis Langdon Consultancy. Spon's Civil Engineering and Highway Works Price Book. 23rd ed. London: Taylor & Francis, 2009.
Цитирование MLA (8-е изд.)E. & F.N. Spon и Davis Langdon Consultancy. Spon's Civil Engineering and Highway Works Price Book. 23rd ed. Taylor & Francis, 2009.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.