Παραπομπή σε μορφή APA (7η εκδ.)

Plummer, H. J., Cushman, J. A., & Waters, J. A. (1930). Calcareous Foraminifera in the Brownwood shale near Bridgeport, Texas. [The University of Texas].

Παραπομπή σε μορφή Chicago (17η εκδ.)

Plummer, Helen Jeanne, Joseph A. Cushman, και J. A. Waters. Calcareous Foraminifera in the Brownwood Shale Near Bridgeport, Texas. Austin: [The University of Texas], 1930.

Παραπομπή σε μορφή MLA (8th εκδ.)

Plummer, Helen Jeanne, et al. Calcareous Foraminifera in the Brownwood Shale Near Bridgeport, Texas. [The University of Texas], 1930.