bf:BookFormat | 2016-04-21 (New) | ||
bf:BookFormat | |||
bf:BookFormat | Book format | ||
bf:BookFormat | Result of folding a printed sheet to form a gathering of leaves. |
bf:BookFormat | 2016-04-21 (New) | ||
bf:BookFormat | |||
bf:BookFormat | Book format | ||
bf:BookFormat | Result of folding a printed sheet to form a gathering of leaves. |