APA ציטוט

Hebersack, H. (2008). Gravel bed rivers VI: From process understanding to river restoration. Elsevier.

Chicago Edition Citation

Hebersack, Helmut. Gravel Bed Rivers VI: From Process Understanding to River Restoration. Amsterdam: Elsevier, 2008.

ציטוט MLA

Hebersack, Helmut. Gravel Bed Rivers VI: From Process Understanding to River Restoration. Elsevier, 2008.