What do “Br” and “Ck” mean in the description of a book?
These are both bibliographic citations. “Br” refers to Bob Brown’s Culinary Americana. The number following “Br” refers to the item number in that bibliography. “Ck” refers to Margaret Cook’s America’s Charitable Cooks. The number that follows “Ck” refers to the page an item is found on in that bibliography.