APA-viite

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

Chicago-tyylinen lähdeviittaus

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

MLA-viite

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