Öpik, A. A. (1970). Nepeid trilobites of the Middle Cambrian of northern Australia. Bureau of Mineral Resources, Geology and Geophysics.
Chicagoスタイル(17版)引用形式Öpik, A. A. Nepeid Trilobites of the Middle Cambrian of Northern Australia. Canberra: Bureau of Mineral Resources, Geology and Geophysics, 1970.
MLA(8版)引用形式Öpik, A. A. Nepeid Trilobites of the Middle Cambrian of Northern Australia. Bureau of Mineral Resources, Geology and Geophysics, 1970.
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