Παραπομπή APA

Barnes, D., & Wilson. F. (1976). The Design and Operation of Small Sewage Works. E. and F.N. Spoon.

Παραπομπή Chicago Style

Barnes, D., και Wilson. F. The Design and Operation of Small Sewage Works. London: E. and F.N. Spoon, 1976.

Παραπομπή MLA

Barnes, D., και Wilson. F. The Design and Operation of Small Sewage Works. E. and F.N. Spoon, 1976.