Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (8a ed.)

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