Παραπομπή APA

Mikhail, E. M., & Ackermann, F. (1976). Observations and least squares. IEP.

Παραπομπή Chicago Style

Mikhail, Edward M., και F. Ackermann. Observations and Least Squares. New York: IEP, 1976.

Παραπομπή MLA

Mikhail, Edward M., και F. Ackermann. Observations and Least Squares. IEP, 1976.