see Spine
- Arabic:كعب الكتاب
- French:Dos
- Italian:Dorso; Costa; Costola
- Portuguese:lombo; lombada
- Spanish:Lomo
See: John Carter. ABC for Book Collectors. Online at: https://ilab.org/assets/documents/articles/documentation_center_files_29_2_20abc_20forbookcollectors_20bob_20fleck.pdf