एपीए उद्धरण

Gurney, R. (1931). British freshwater cope poda V1. Ray society.

शिकागो स्टाइल उद्धरण

Gurney, Robert. British Freshwater Cope Poda V1. London: Ray society, 1931.

एमएलए उद्धरण

Gurney, Robert. British Freshwater Cope Poda V1. Ray society, 1931.