Lua APA (7ú heag.)

Öpik, A. A. (1982). Dolichometopid trilobites of Queensland, Northern Territory, and New South Wales. Australian Govt. Pub. Service.

Lua i Stíl Chicago (17ú heag.)

Öpik, A. A. Dolichometopid Trilobites of Queensland, Northern Territory, and New South Wales. Canberra: Australian Govt. Pub. Service, 1982.

Lua MLA (8ú heag.)

Öpik, A. A. Dolichometopid Trilobites of Queensland, Northern Territory, and New South Wales. Australian Govt. Pub. Service, 1982.

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