एपीए उद्धरण

Kumar, N. (2005). An elementary course on variational problems in calculus. Harrow, U.K: Alpha Science International Ltd.

शिकागो स्टाइल उद्धरण

Kumar, Naveen. An Elementary Course On Variational Problems in Calculus. Harrow, U.K: Alpha Science International Ltd, 2005.

एमएलए उद्धरण

Kumar, Naveen. An Elementary Course On Variational Problems in Calculus. Harrow, U.K: Alpha Science International Ltd, 2005.