Παραπομπή APA

Sheffield, B. (1995). Inalnd waterways of Germany. Imary Laurie Nore & Wilson Ltd.

Παραπομπή Chicago Style

Sheffield, Barry. Inalnd Waterways of Germany. England: Imary Laurie Nore & Wilson Ltd, 1995.

Παραπομπή MLA

Sheffield, Barry. Inalnd Waterways of Germany. Imary Laurie Nore & Wilson Ltd, 1995.