  The bamboo texts, written in a Chu script, have been transcribed into standard Chinese and published under the title Guodian Chumu zhujian (Beijing: Wenwu, 1998), which on the basis of the size and shape of the slips, calligraphy, and other factors divides the Laozi material into three groups. Group A contains thirty-nine bamboo slips, which correspond in whole or in part to the following chapters of the present text: 19, 66, 46, 30, 15, 64, 37, 63, 2, 32, 25, 5, 16, 64, 56, 57, 55, 44, 40 and 9. Groups B and C are smaller, with eighteen (chs. 59, 48, 20, 13, 41, 52, 45, 54) and fourteen slips (chs. 17, 18, 35, 31, 64), respectively.