Whitaker, W. (1877). The geology of the eastern end of Essex (Walton Naze and Harwich): Explanation of quarter sheet 48 S. E. with the adjoining part of 48 N. E.). Printed for H. M. Stationery off..
Lua i Stíl Chicago (17ú heag.)Whitaker, W. The Geology of the Eastern End of Essex (Walton Naze and Harwich): Explanation of Quarter Sheet 48 S. E. with the Adjoining Part of 48 N. E.). London: Printed for H. M. Stationery off., 1877.
Lua MLA (8ú heag.)Whitaker, W. The Geology of the Eastern End of Essex (Walton Naze and Harwich): Explanation of Quarter Sheet 48 S. E. with the Adjoining Part of 48 N. E.). Printed for H. M. Stationery off., 1877.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.