Kamasutra
एकचारिणीवृत्तं प्रवासचार्या सपत्नीषु ज्येष्ठावृत्तं कनिष्ठावृत्तं पुनर्भूवृत्तं दुर्भगावृत्तं आन्तःपुरिकं पुरुषस्य बह्वीषु प्रतिपत्तिः इति भार्याधिकारिकं चतुर्थं अधिकरणं अध्यायौ द्वौ प्रकरणान्यष्टौ ॥ १-१-१९ ॥
The fourth part, "Duties and Privileges of the Wife," comprises two chapters dealing with eight subjects: The wife must love none but her husband, Living in his place of residence, Respect for the chief wife, Behavior toward younger wives, Accepting the arrival of a new wife, Behavior of the repudiated wife, Final duty, The husband's behavior towards many wives.
english translation