| Description | Notes | |
|---|---|---|
| EN | Square spine | Hardcover where the spine is straight |
| FR | Dos carré | Couverture rigide au dos droit |
| ES | Lomo plano | Tapa dura donde el lomo es plano |
List 175 · Product form detail
B321 — Square spine
<?xml version="1.0" encoding="UTF-8"?>
<Product xmlns="http://ns.editeur.org/onix/3.0/reference">
<DescriptiveDetail>
<ProductFormDetail>B321</ProductFormDetail>
</DescriptiveDetail>
</Product>- Introduced in Issue 69