APA (7th ed.) Citation

Cushman, J. A. (1950). Foraminifera: Their classification and economic use (4th ed.). Harvard University Press.

Chicago Style (17th ed.) Citation

Cushman, Joseph A. Foraminifera: Their Classification and Economic Use. 4th ed. Cambridge, Massachusetts: Harvard University Press, 1950.

MLA (9th ed.) Citation

Cushman, Joseph A. Foraminifera: Their Classification and Economic Use. 4th ed. Harvard University Press, 1950.