APA (7 वां संस्करण) प्रशस्ति पत्र

TIWARI R.S. (2006). INTRA-FIRMS TRADE BETWEEN INDIA AND USA: A STRUCTURAL ANALYSIS. HIMALAYA PUBLISHING HOUSE.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

TIWARI R.S. INTRA-FIRMS TRADE BETWEEN INDIA AND USA: A STRUCTURAL ANALYSIS. MUMBAI: HIMALAYA PUBLISHING HOUSE, 2006.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

TIWARI R.S. INTRA-FIRMS TRADE BETWEEN INDIA AND USA: A STRUCTURAL ANALYSIS. HIMALAYA PUBLISHING HOUSE, 2006.