एपीए उद्धरण

Robert M Sherfield, R. J. M. a. P. G. M. (2005). Cornerstone: Developing Soft Skills (4th ed.). Dorling Kindersley / Pearson Education.

शिकागो स्टाइल उद्धरण

Robert M Sherfield, Rhonda J Montgomery and Patricia G Moody. Cornerstone: Developing Soft Skills. 4th ed. Dorling Kindersley / Pearson Education, 2005.

एमएलए उद्धरण

Robert M Sherfield, Rhonda J Montgomery and Patricia G Moody. Cornerstone: Developing Soft Skills. 4th ed. Dorling Kindersley / Pearson Education, 2005.