एपीए उद्धरण

Cartmell , E., & Fowles , G. .. W. .. A. (1977). Valency and molecular structure (4ed.). Butterworth and Co publishers Ltd.

शिकागो स्टाइल उद्धरण

Cartmell , E., और G . W . A. Fowles. Valency and Molecular Structure. 4ed. London: Butterworth and Co publishers Ltd, 1977.

एमएलए उद्धरण

Cartmell , E., और G . W . A. Fowles. Valency and Molecular Structure. 4ed. Butterworth and Co publishers Ltd, 1977.