एपीए उद्धरण

Hawker, L. E. (1971). Micro-organisms: Function, form and environment. London: Edward Arnold Ltd.

शिकागो स्टाइल उद्धरण

Hawker, Lilian E. Micro-organisms: Function, Form and Environment. London: Edward Arnold Ltd, 1971.

एमएलए उद्धरण

Hawker, Lilian E. Micro-organisms: Function, Form and Environment. London: Edward Arnold Ltd, 1971.