Cita APA (7th ed.)

Mullens, T. E. (1979). Stratigraphy, petrology, and some fossil data of the Roberts Mountains formation, north-central Nevada. Dept. of the Interior, Geological Survey.

Cita Chicago (17th ed.)

Mullens, Thomas E. Stratigraphy, Petrology, and Some Fossil Data of the Roberts Mountains Formation, North-central Nevada. [Reston, Va.]: Dept. of the Interior, Geological Survey, 1979.

Cita MLA (9th ed.)

Mullens, Thomas E. Stratigraphy, Petrology, and Some Fossil Data of the Roberts Mountains Formation, North-central Nevada. Dept. of the Interior, Geological Survey, 1979.