Cita APA (7th ed.)

Cushman, J. A. (1948). Foraminifera: Their classification and economic use (4a. ed.). Harvard University Press.

Cita Chicago (17th ed.)

Cushman, Joseph A. Foraminifera: Their Classification and Economic Use. 4a. ed. Cambridge: Harvard University Press, 1948.

Cita MLA (9th ed.)

Cushman, Joseph A. Foraminifera: Their Classification and Economic Use. 4a. ed. Harvard University Press, 1948.