Hess, H. D. (1971). Marine sand and gravel mining industry of the United Kingdom ([1st ed.].). Department of Commerce.
Chicago-Zitierstil (17. Ausg.)Hess, Harold D. Marine Sand and Gravel Mining Industry of the United Kingdom. [1st ed.]. Washington: Department of Commerce, 1971.
MLA-Zitierstil (9. Ausg.)Hess, Harold D. Marine Sand and Gravel Mining Industry of the United Kingdom. [1st ed.]. Department of Commerce, 1971.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.