APA-Zitierstil (7. Ausg.)

Harper, J. A. (1985). A new look at Eugasterella Logani (Hall, 1868)(Stelleroidea: Ophiuroidea) from the middle Devonian of New York State.

Chicago-Zitierstil (17. Ausg.)

Harper, John A. A New Look at Eugasterella Logani (Hall, 1868)(Stelleroidea: Ophiuroidea) from the Middle Devonian of New York State. Pittsburgh, Pa, 1985.

MLA-Zitierstil (9. Ausg.)

Harper, John A. A New Look at Eugasterella Logani (Hall, 1868)(Stelleroidea: Ophiuroidea) from the Middle Devonian of New York State. 1985.