The links below are files for the PDF pattern and written instructions for the ricrac apron from page 169 of Fabric Manipulation. The text refers to the pink / green version shown below, which helps to make the construction clearer. Top tip – angle the pocket as in the pink / green version, the black version is leaning the wrong way!
The pink & green version and the text was originally published in Pretty Little Patchwork by Lark Books, 2008.