Kamasutra
तस्य षष्टं वैशिकं अधिकरणं पाटलिपुत्रकाणां गणिकानां नियोगाद्दत्तकः पृथक्चकार- ॥ १-१-११ ॥
Dattaka, after consulting the courtesans of Pataliputra, summarized the sixth chapter on prostitutes in a separate work called Kama Shastra
english translation
tasya SaSTaM vaizikaM adhikaraNaM pATaliputrakANAM gaNikAnAM niyogAddattakaH pRthakcakAra- ॥ 1-1-11 ॥
hk transliteration by Sanscript