�Opik, A. A. (1975). Cymbric Vale fauna of New South Wales and early Cambrian biostratigraphy. Australian Government Publishing Service.
Chicago Style (17th ed.) Citation�Opik, A. A. Cymbric Vale Fauna of New South Wales and Early Cambrian Biostratigraphy. Canberra: Australian Government Publishing Service, 1975.
MLA (9th ed.) Citation�Opik, A. A. Cymbric Vale Fauna of New South Wales and Early Cambrian Biostratigraphy. Australian Government Publishing Service, 1975.
Warning: These citations may not always be 100% accurate.