APA (7e ed.) Bronvermelding

Freund, J. E. (1981). Statistics: A first course (2nd ed.). Prentice Hall.

Chicago (17e ed.) Bronvermelding

Freund, John E. Statistics: A First Course. 2nd ed. Englewood Cliffs, NJ : New Jersey: Prentice Hall, 1981.

MLA (9e ed.) Bronvermelding

Freund, John E. Statistics: A First Course. 2nd ed. Prentice Hall, 1981.