{"codelist_number":175,"code_value":"B321","description_en":"Square spine","description_fr":"Dos carré","description_es":"Lomo plano","notes_en":"Hardcover where the spine is straight","notes_fr":"Couverture rigide au dos droit","notes_es":"Tapa dura donde el lomo es plano","introduced_in_issue":69,"modified_in_issue":null,"deprecated_in_issue":null}